A - Letter A - Words that Begin with the Letter A

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Upper Case Capital Letter  A 

Lower Case Letter  a

Speak Letter - Mouse over the Letter A (ey)

Hand Write Letter - Mouse over diagram on right >

Sound Phonics: a, e, i, o, u, and sometimes y. - 44 Phonemes (PDF)

The Letter A is the 1st letter of the English Alphabet. Word Class.

Important Words that begin with the Letter A

Awake is when you are not sleeping and completely conscious and mentally perceptive and responsive. Eyes are open and moving, and the eye lids are blinking. (I am usually awake for 16 hours and I usually sleep for 8 hours everyday.)

Alert is being mentally perceptive, responsive and prepared for action. Having heightened watchfulness and feeling energetic and ready to move quickly. Having alertness. (I am the most alert when I am well rested and well nourished.)

Attention is focusing your time and effort on something important. The process of looking at something attentively while avoiding being distracted. Taking special care and mentally concentrating on someone or something interesting or important. (I have an easier time focusing when I'm interested in something and have prior knowledge of something.)

Awareness is knowing what is happening around you and understanding a situation or a moment in time. (I am most aware when I understand the environment and understand behaviors and patterns.)

Alive is possessing life. Being mentally perceptive and responsive. Breathing or other life related activities. Not dead or frozen. (I feel the most alive when I am happy and when I'm enjoying an activity that I like.)

Alphabet is character set that includes letters. Letters are used to write words and speak a language. There are 26 letters in the English Language Alphabet. (I know all 26 letters of the English alphabet and I know how to form words using letters.)

Animal is a living multicellular organism with tissues and organs that have cells that have a cell nucleus and other organelles enclosed within membranes. Animals are able to move, eat and consume organic material, and reproduce sexually. Animals are either vertebrates or invertebrates. Vertebrates are fishes, amphibians, reptiles, birds, and mammals like Humans, which have a vertebral column or spine. Invertebrates do not have backbones or spines, like insects, crabs, lobsters, snails, clams, octopuses, jellyfish and worms. (There are all kinds of different animals on earth. Humans are animals, but humans have a more advanced brain that gives humans special abilities. But many animals can do certain things better than humans can, which makes all animals very special.)

Ask is to make a request for information and to seek an answer. Ask is to search for knowledge with a desire to know and understand something. Ask is to address a question to someone in order to get an answer. Ask is to inquire about something and to seek an answer to a question, or to make a request or a demand for something or to somebody. Ask is to conduct an investigation. (I love to ask questions, it helps me to learn more and to understand things easier.)

Answer is to reply to a question verbally or by other means. Answer is to understand the meaning of something in order to give an accurate response. An answer should be satisfactory for the question and meet the requirements of the question and also serve the purpose of that question. (Some answers are better than other answers. A good answer is when you don't have to ask more questions. A good answer can make problem solving easier.)

Accurate is being correct, precise or true in all details, measurements, calculations, facts, or standards. Being Exact. (Accuracy).

Articulate is to express and pronounce and speak words in a message more clearly so that the message is accurately understood.

Assume is to pretend to know the answer, or to guess an answer to a question, or to believe a future event will happen without verification, facts or proof. Assume can also mean to take on certain responsibilities.

Approximate is to guess an outcome or to guess the number of things without having all the information that is needed to make an accurate calculation. An Estimate.

Average is an approximate statistical middle scale of an evaluation that is between a high and low of something without loss or gain, or something that is in between a measurement of good or bad with a ratio that shows what something normally is or usually is. (If you tried to do something 10 times, and you succeeded 5 times and failed 5 times, then your average is 50 percent.)

Ability is being able to do something that takes skill, practice and training.

Aptitude is the ability to do a certain kind of work effectively at a needed skill level. Competence.

Advance is a change for the better. To improve, develop or progress. To move forward.

Affect is to change someone or something in a positive or negative way. Causation. Affect is to influence and Effect is something that was influenced.

Advantage is having an easier time with something or receiving better treatment then someone else. Benefiting more then another person as a result of some event or some action. Having more options, more choices and more privileges.

Achievement is the action of accomplishing something.

Achieve is to gain with effort to accomplish a goal.

Accomplish is to gain or achieve an important goal using physical and mental effort in order to complete a set of requirements or to succeed in doing something or to increase something, or advance or to develop something.

Acquire is to gain knowledge or skills through experience and effort. To possess or to have or be in control of something.

Add is to join, combine or unite things. To increase the quantity, size or scope of something. To determine the sum of an equation by combining numbers or the numbers of things.

Addition is the act of adding one thing to another to measure quantity. Calculating the sum of two or more numbers.

Assemble is to create something by putting things together. To gather together people in one place for a common purpose. Collect.

Arrangement is an orderly grouping of things or persons considered as a unit. An organized structure for arranging or classifying. Put into a proper or systematic order.

Adjust is to alter, modify or regulate so as to achieve accuracy or adapt to limits or different conditions.

Alter is cause to change; make different; cause a transformation.

Apparatus is a type of equipment designed to serve a specific function. Apparatus in anatomy is a group of body parts that work together to perform a given function.

Again is to do something once more. Another try or one more attempt.

Another is one more. One of a number of things that can provide a different choice or option.

Attempt is to make an effort to accomplish a task or to try to reach a goal.

Aim is the action of directing or pointing toward an intended goal or object. An anticipated outcome that is intended or that guides your planned actions and directs you along a path in a desired direction. Aim is to specifically design a product, event, or an activity for a certain public.

Action is to be in motion or to cause motion, work or activity. To act.

Act is something that people do or cause to happen. Perform an action. Perform on a stage or theater. Act can also mean to behave in a certain manner or show a certain behavior or conduct, or pretend to have certain qualities or state of mind.

Activism is a set of social activities designed to inform people and bring awareness and attention to a problem that is causing people harm or damaging something of value where people live.

is a person who publicly speaks out against something to reveal fraud, waste, corruption or abuse, and has knowledge, proof and evidence of a crime.

Assistance is the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose. Help.

Alternative is a choice between two or more possibilities. An option. One of a number of things from which only one can be chosen.

Authentic is something factual and real and not counterfeit or copied. An origin that can be verified.

Artificial is something created by humans to be similar to something else that is naturally existing in reality. Not better, just similar.

Analog is relating to a device or process in which data is represented by physical quantities that change continuously. Data is represented by continuously variable physical quantities. Humans perceive the world in analog. Everything we see and hear is a continuous transmission of information to our senses. This continuous stream is what defines analog data. Digital information, on the other hand, estimates analog data using only ones and zeros. A turntable (or record player) is an analog device, while a CD player is digital. This is because a turntable reads bumps and grooves from a record as a continuous signal, while a CD player only reads a series of ones and zeros. Analog also means a circuit or device having an output that is proportional to the input. Relating to or using signals or information represented by a continuously variable physical quantity such as spatial position or voltage. An analog signal is any continuous signal for which the time varying feature (variable) of the signal is a representation of some other time varying quantity, i.e., analogous to another time varying signal. Analog electronics are electronic systems with a continuously variable signal, in contrast to digital electronics where signals usually take only two levels. The term "analogue" describes the proportional relationship between a signal and a voltage or current that represents the signal. Analogous also means similar, comparable or equivalent in some respects though otherwise dissimilar.

Atom is the smallest component of matter that can have protons and neutrons at its center with an electron or electrons circling the nucleus from such a large distance that it makes the entire atom almost 99.9 percent space. Atoms are the chemical properties of an element, which can be a gas, liquid, solid or plasma. An atom is roughly one angstrom across or one ten millionth of a millimeter (mm).

Air is a mixture of gases such as oxygen, nitrogen and carbon dioxide that surrounds the earth and is required for breathing. Wind is made up of molecules of different elements of gases.

Atmosphere is the thin layer of air that surrounds our planet which is made up of several layers of gases.

Altitude is a vertical distance measurement of how high something is above the sea level, in feet or meters. There are several types of aviation altitude: Indicated altitude, which is the altitude shown on the altimeter. Absolute altitude, which is altitude in terms of the distance above the ground directly below. True altitude, which is the altitude in terms of elevation above sea level
Height, which is the altitude in terms of the distance above a certain point. Pressure altitude, which is the air pressure in terms of altitude in the International Standard Atmosphere. Density altitude, which is the density of the air in terms of altitude in the International Standard Atmosphere in the air.

Above is something at a higher in position than other things. (Look up it's right above you).

Athletic is being skilled and coordinated in a particular sport or physical activity.

Activities are things to do that require movements or actions. Or, an organic process that takes place in the body.

Award is a tangible symbol signifying some benefit or value from some work or action performed.

Artist is someone who uses imagination and skills to create something unique or valuable.

Appreciate is to be thankful for and to be aware of and to recognize someone or something for its value and importance. To be grateful for something received. Appreciation is understanding the meaning of, or the quality of, or the magnitude of something special. To say thank you. Reciprocating kindness.

Authorization is a document giving an official instructions, permission or approval.

Authorize is to give permission to. To allow someone to continue with an intended activity.

Access is being allowed or permitted to enter into an area in order to obtain or retrieve information. Sometimes using a key, or code or some kind of device or symbol.

Approve is to be in favor of or to be in agreement with a particular action or thing.

Appropriate is something that is designed for a particular person, place, occasion or condition.

Attractive is something that is pleasing to the eye or the mind. Something that looks good to you. Something that you like and see as being beautiful.

Adhering is cooperating with a plan without deviation.

Adhesive is a substance that unites or bonds surfaces together, stick together like glue.

Alpha is the first letter of the Greek alphabet (uppercase Α, lowercase α). In the system of Greek numerals, it has a value of 1. Alpha is also a synonym that means the beginning or first in a series, or a leader. Alpha is also a code word representing the letter A, used in radio communication.

Adventure is a risky activity that can also be exciting and fun. A complex goal that takes careful planning, training and skills.

Anticipation is the feeling that you get when you know that something is going to happen in the future. A prediction in advance about a probable or likely event that you are excited about or worried about happening. Expecting a surprise but not totally sure what it will be like or exactly when or if.

Apparent is clearly revealed to the mind, by the senses or by knowledge. Appearing as such but not necessarily so.

Attribute is a characteristic of something that can be perceived, defined and measured. A distinct feature, part or element.

Association is being connected in some way. Joined or linked together.

Addiction is a bad habit that is hard to control. An abnormal strong craving and a dependence on something that is psychologically or physically controlling. Takes time, knowledge, awareness and discipline to overcome an addiction.

Abuse is to be bad, wrong, disrespectful or harmful to someone or something. To be cruel, rude, offensive, improper or inhumane.

Adult is a person usually over the age of 18 years old who has almost reached full physical development. Someone who is nearly mature and possesses average knowledge about themselves and the world around them.

Arm is a limb that extends from the shoulder of the human body.

Ankle is part of the leg connected above the foot and below the knee.

Abdomen is the region of the body below the chest and above the legs. The stomach between the thorax and the pelvis.

Appendectomy is a surgical removal of the appendix.

Appendix is a pouch like structure of the colon, located at the junction of the small and the large intestines. Long and thin and cylindrical.

Angle is the space between two lines or planes that intersect. To incline or bend from a vertical position.

Animal is a living organism that can develop, reproduce, and has the ability to act or function independently.

Aqua is a color that has a shade of blue tinged with green. Aqua also means something involving water.

Analogy is making a comparison between things in order to show a similarity in some respect.

Analyze is to look at carefully the details of a subject in order to discover essential features or meaning.

Africa is the second largest continent made up of 54 sovereign countries. Bordered to the west by the South Atlantic and to the east by the Indian Ocean. (1.216 billion people in 2016).

Asia is the largest continent with 48-50 independent countries and 60% of the earth's population located primarily in the Eastern and Northern Hemispheres; it is joined to Europe on the west to form Eurasia; it is the site of some of the world's earliest civilizations.

Australia is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It is the largest country in Oceania and the world's sixth-largest country by total area. The neighboring countries are Papua New Guinea, Indonesia and East Timor to the north; the Solomon Islands and Vanuatu to the north-east; and New Zealand to the south-east. Australia's capital is Canberra, and its largest urban area is Sydney. For about 50,000 years before the first British settlement in the late 18th century, Australia was inhabited by indigenous Australians, who spoke languages classifiable into roughly 250 groups.

America is a country in the northern hemisphere on the continent of North America. Commonly known as the United States that is composed of 50 states, a federal district, five major self-governing territories, and various possessions. The capital is Washington, D.C., and the largest city by population is New York City.

Alaska is one of the U.S. states located in the northwest extremity of North America. The Canadian administrative divisions of British Columbia and Yukon border the state to the east, its most extreme western part is Attu Island, and it has a maritime border with Russia to the west across the Bering Strait.

Arizona is a U.S. state in the southwestern region of the United States. It is also part of the Western and the Mountain states. It is the sixth largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix.

Alabama is a state in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama is the 30th largest by area and the 24th-most populous of the U.S. states.

Arctic is the northern most part of Earth. A polar region located at the northernmost part of Earth or North pole. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Alaska (United States), Northern Canada (Canada), Finland, Greenland (Denmark), Iceland, Norway, Russia and Sweden. Land within the Arctic region has seasonally varying snow and ice cover, with predominantly treeless permafrost-containing tundra. Arctic seas contain seasonal sea ice in many places.

Antarctic is the southern most part of Earth. A polar region around the Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises in the strict sense the continent of Antarctica and the island territories located on the Antarctic Plate.

August is the eighth month of a calendar year following July and preceding September.

Apple is a edible fruit with red or yellow or green skin and sweet to tart crisp whitish flesh interior. A ripened reproductive body of a seed plant.

Aroma is a distinctive odor that is pleasant to smell when detected by the olfactory system.

And is used to connect words, clauses or sentences. In order to; used instead of "to", especially after try, come, go. (Ham and Eggs - You and I).

About is to guess or estimate an exact amount that you are not sure of. Close to, almost to, or near to the area or vicinity. About can also mean on the move in no particular direction or place.

Are is used with the present participle of another verb to form the progressive tense.
Verb: Second-person singular simple present tense of be (Mary, where are you going?)
First-person plural simple present tense of be (We are not coming.)
Second-person plural simple present tense of be (Mary and John, are you listening?)
Third-person plural simple present tense of be (They are here somewhere.)

As is to the same degree. (She's twice as strong as I was two years ago).

At expresses position, direction or location, or point in time. (I will go to sleep at 9:00 pm).

All is to a complete degree or to the full or entire extent. Everything or everyone. (We are all here)

Also is in addition to. As well. Besides

Antonyms are words that have an opposite meaning from each other. (sad or glad). A word opposite in meaning to another (e.g., bad and good).

Adjective is a word that expresses an attribute of something. The word class that qualifies nouns. Describe or modify—that is, they limit or restrict the meaning of—nouns and pronouns. They may name qualities of all kinds: huge, red, angry, tremendous, unique, rare, etc. An adjective usually comes right before a noun: "a red dress," "fifteen people."

Adverb is a word that modifies something other than a noun. A word that modifies a verb, adjective, another adverb, determiner, noun phrase, clause, or sentence. Adverbs typically express manner, place, time, frequency, degree, level of certainty, etc., answering questions such as how?, in what way?, when?, where?, and to what extent?.

After is something happening at a later time. Following in time or order.

A is the basic unit of electric current adopted under the Système International d'Unités. (a typical household circuit carries 15 to 50 amps).

A is a any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes.

The Letter A is also a word that is used alongside a noun (as a standalone word or a prefix or suffix) to specify grammatical definiteness of the noun, and in some languages extending to volume or numerical scope. The articles in English grammar are the and a/an, "an" is use before a vowel sound, "a" otherwise. A pencil. A bird.

A.M. stands for ante meridiem which is the 12-hour clock time period of a 24 hour day that is divided into two intervals of 12 hour. A.M. starts at 12 AM midnight and goes for 12 hours until 12 PM noon time when the sun is shining. Then PM goes for 12 hours until 12 AM. then the cycle continues. The Earth takes 24 hours to rotate one full turn on its axis or a 360 degree spin.

Axis an imaginary line about which a body rotates on or around on a fixed point that is the center.

A a    B b    C c    D d    E e    F f    G g    H h    I i     J j    K k    L l    M m 
N n    O o    P p    Q q    R r    S s    T t    U u    V v    W w    X x    Y y    Z z

Reading Knowledge - Writing Knowledge - Language Knowledge

Dictionary - Learners Dictionary - Read to Learn

Words that are mostly used on average when writing or speaking

Word Class - Parts of Speech

Word Class is a category of words of similar form or function. A part of speech.

Part of Speech is a category of words of lexical items which have similar grammatical properties. Words that are assigned to the same part of speech generally display similar behavior in terms of syntax—they play similar roles within the grammatical structure of sentences—and sometimes in terms of morphology, in that they undergo inflection for similar properties. Commonly listed English parts of speech are noun, verb, adjective, adverb, pronoun, preposition, conjunction, interjection, and sometimes numeral, article or determiner. Grammatical Functions - Transition Words.

Nouns are words that name a person, place, thing, or idea. (bed, democracy).

Proper nouns are specific names of people and places, such as Martin Luther King Jr. and Indianapolis — are capitalized.

Pronouns are words that take the place of a noun or another pronoun. (I, you, me, he, she, it, we, who, they).

Possessive pronouns show ownership: my/mine, your/yours, their/theirs, our/ours.

Adjectives are words that describe nouns and pronouns. (red, more, second, several).

Verbs are words that name an action or describe a state of being (run, seem).

Adverbs are words that describe verbs, adjectives, or other adverbs (yesterday, below, happily, partly).

Conjunctions are words that connect words or groups of words and show how they are related (and, or, for, but, after, although, because).

Prepositions are words that link a noun or pronoun to another word in the sentence (by, about, behind, above, across, at, with)

Interjections are words that show strong emotion (Oh! Wow!).

Noun system of words for communication: accent, dialect, expression, jargon, prose, sound, speech and style.

Punctuation Marks

Punctuation is the name for marks used in writing. They are to help understanding and correct reading. These are some common punctuation marks used in English:

. period or full stop
, comma
? question mark
! exclamation mark
' apostrophe
" quotation mark/inverted comma
: colon
; semicolon
... ellipsis (omission or suppression of parts of words or sentences) eclipsis
- hyphen
– n-dash
— m-dash

Apostrophe (') is a punctuation mark used to indicate the omission of one or more letters from a printed word. Use an apostrophe + S ('s) to show that one person/thing owns or is a member of something. Use an apostrophe after the “s” at the end of a plural noun to show possession. If a plural noun doesn't end in “s,” add an “'s” to create the possessive form.

Keyboard Symbols.

Prefixes that Mean “Not”

A-: Abroad is to travel in a foreign country far away from home or away from one's usual surroundings.
Anti-: Antiseptic is a substance that destroys micro-organisms that carry disease without harming body tissues. (an–tih-sep-tik).  Antidote is a remedy that stops or controls the effects of a poison. (an-teh-doht)
Dis-: Disagree is to not to understand something in the same way that someone else does.
Il-: illegible means not readable. Illiterate is a person cannot read or write. illogical is being irrational and lacking reason or common sense. illegal is something bad that is prohibited by law or not accepted by rules, something that may cause you to be arrested or sent to prison or receive a fine.
Im-: Imbalance is a lack of balance, not stable or steady.
In-: Individuality is being an individual with a unique personality.
Ir-: Irretrievable is something impossible to recover or recoup or overcome.
Un-: Unhappy means being sad or not happy.
Common Vocabulary Prefixes are Co-, De-, and In-.
Co- means “with.” Variations include col-, com-, and con-. (cofounder, commemorate, conclusion)

Suffix Meaning Examples

able/ible capable or worthy of, fit for; tending to, causing, given to, or liable to commendable, edible, impressionable.
d/ed indicates past tense of a verb baffled, flummoxed, wasted.
ence/ance quality or state; an action or process clearance, reference, remembrance.
ing indicates the present-perfect tense of a verb (such verbs are called gerunds) admiring, discussing, perplexing.
ion act, result of an act, or state or condition integration, obsession, possession.
ment an action, process, or act of a specified kind bereavement, merriment, movement.
s/es indicates the plural form of a noun analyses, arguments, results.

Examples of adding a prefix to a root:
De + hydrate = dehydrate (to remove the water or moisture from)

Examples of adding a suffix to a root:
zoo + ology = zoology (the study of animals)
bronch + itis = bronchitis (inflammation of the bronchial tubes)

Grafting roots to roots
Cal (beauty) + graph (to write) forms calligraphy (kah-lig-rih-fee), which means “elegant penmanship.”
Carn (meat) + vor (to eat) forms carnivore (kar-nih-vor), which is someone who eats meat.
Chron (time) + meter (measure) forms chronometer (krah-nahm-ih-ter) — an instrument for measuring time.

Arranging words in your mind
Any time you set out to study words, get in the habit of mentally arranging them into the following three categories:
Words you know: You use and can define these words.
Words you’re familiar with: You generally use these words correctly without knowing exactly what they mean.
Words you don’t know: You may have seen these words once or twice, or you may be encountering them for the first time.

Decoding Medical Lingo

Modalities of therapy means “treatments.”
Capillary hemangiomas refers to strawberry birthmarks.
Spontaneous involution means “disappearing on its own.”

Benign is harmless and not malignant. (bih-nyn).
Malignant is a dangerous uncontrolled growth of a tumor that easily spreads like an infection and is poisonous and harmful.
Tumor is an abnormal mass of tissue that can harm organs in the body and cause death by swelling or causing inflammation.
Metastasized is the spread of cancer to other areas in the body by metastasis, which is the development of secondary malignant growths at a distance from a primary site of cancer.
Melanoma is a malignant skin tumor. (mel-eh-noh-ma).
Carcinogenic is something that is cancer-producing. (kar-sin-oh-jen-ik).
Ulcer is an open sore, as in the stomach lining. (ul-sur).
Toxic is something very poisonous and deadly. (tox-ik).
Antibiotic is a bacteria-killing substance. (an-ty-by-ah-tik).
Diagnosis is a decision or opinion based on an examination. (dy–ag-noh-sis).
Prognosis is a prediction of the probable course of a disease and the chances of recovery. (prog-noh-sis).
Remission is the disappearance of disease symptoms. (ree-mih-shun).
Hematoma is a collection of blood, usually clotted, outside a blood vessel. (hee-meh-toh-ma).
Coagulate is to thicken or clot, or to cause to do so (as in blood) (koh-ag-yoo-layt).
Plasma is the fluid portion of the blood. (plaz-ma).
Aneurysm is a sac formed by an enlarged weakened wall in arteries, veins, or the heart. (an-yoor-iz-em).
Incision is a cut, as in surgery. (in-siz-zhun).
Lacerated is when the skin is torn, as in a wound. (las-er-ay-ted).
Suture is joining two edges together by stitching, or similar means; a stitch. (soo-chur).
Comatose is when someone is unconscious or in a coma. (koh-mah-tohs).
Concussion is a brain injury due to violent blow or impact. (kon-kuhs-shun).
Migraine is an intense pain in the head or a  recurring headache. (my-grayn).


Phone Pad with Numbers and Letters (1 One) (2 Two) (3 Three)  (4 Four)  (5 Five) (6 Six) (7 Seven) (8 Eight) (9 Nine) (10 Ten)
(11 Eleven)  (12 Twelve) ( 12 Thirteen) (14 Fourteen) (15 Fifteen) (16 Sixteen) (17 Seventeen) (18 Eighteen) (19 Nineteen) (20 Twenty) (21 Twenty-one ) - (29 Twenty-Nine)
(30 Thirty) (31 Thirty-one ) - (39 Thirty-Nine)
(40 Forty ) (41 Forty-one) - (49 Thirty-Nine)
(50 Fifty ) (51 Fifty-one) - (59 Fifty-Nine)
(60 Sixty ) (61 Sixty-one) - (69 Sixty-Nine)
(70 Seventy ) (71 Seventy-one) - (79 Seventy-Nine)
(80 Eighty) (81 Eighty-one) - (89 Eighty-Nine)
(90 Ninety ) (91 Ninety-one) - (99 Ninety-Nine)
(100 One-Hundred ) (101 One-Hundred and One) - (199 One-Hundred and Ninety-Nine)
(200 Two-Hundred )
(300 Three-Hundred )
(400 Four-Hundred )
(500 Five-Hundred )
(600 Six-Hundred )
(700 Seven-Hundred )
(800 Eight-Hundred )
(900 Nine-Hundred ) (901 Nine-Hundred and One) - (999 Nine-Hundred and Ninety-Nine)
(1,000 One-Thousand)
(10,000 Ten-Thousand)
(100,000 One-Hundred-Thousand)
(1,000,000 One-Million)
(100,000,000 One-Hundred-Million)
(1,000,000,000 One-Billion)

List of Numbers (PDF) - Math Knowledge.

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