| adverb |
a word that describes a verb, adjective, or other adverb. Adverbs are also used to modify a whole sentence. |
| agreement |
an understanding between people or groups that states what kind of action is to be taken and what each person's responsibility will be. The document that describes this understanding is also called an agreement. [1/4 definitions] |
| air conditioner |
a machine that cools the air in a room or car. An air conditioner also takes the dust and dampness out of the air. |
| air pressure |
the force of air on things. Air pressure has to do with how much force air has when it has been compressed into a space like a tire. It is also the pressure of the earth's atmosphere. |
| albino |
a human or animal that is born without normal coloring. Albinos have very pale skin and hair and pink eyes. Plants can also be albinos. |
| alcohol |
a clear liquid that burns easily and can be made from certain grains and fruits. Alcohol is present in such drinks as beer, wine, and whiskey. It is also used in making medicines and chemicals. [1/2 definitions] |
| alias |
otherwise known as; also named. [1/2 definitions] |
| American Indian |
a member of any of the native peoples of North America, Central America, South America, or the West Indies, except for Eskimos. American Indians are also called Native Americans. |
| and |
with; also; along with; as well as. [1/3 definitions] |
| Andorra |
a small country in the mountainous region between France and Spain. The capital of Andorra is also called Andorra. |
| anteater |
a mammal that uses its long, sticky tongue to eat ants and termites. True anteaters have no teeth, are furry, and live in Central or South America. They are related to armadillos and sloths. Other kinds of mammals that eat ants are also sometimes called anteaters, but they are not related to American anteaters. |
| antelope |
an animal with horns, a long neck, long legs, and hooves. Antelopes are known for their fast running. Antelopes are mammals that eat plants and chew their cud. The smallest kind of antelope is only one foot tall; the largest antelope is six feet tall at the shoulder. Gazelles, gnus, and impalas are all antelopes. Most antelopes live in Africa; some also live in Asia. [1/2 definitions] |
| apatosaur |
another name for brontosaur. This animal was also called apatosaurus. |
| Apollo |
the god of light, music, poetry, and healing in Greek and Roman mythology. Apollo was also the god of prophecy. People travelled to his shrine at Delphi to ask questions about future events. |
| Aquarius |
a constellation located between Capricorn and Pisces. Aquarius is also called the Water Bearer. [1/3 definitions] |
| are1 |
a form of the verb "be" that is present tense and used with the pronouns "you," "we," or "they." It is also used with plural nouns. |
| Aries |
a constellation located between Pisces and Taurus. Aries is also called the Ram. [1/3 definitions] |
| as well |
besides; also; too. |
| as well as |
and also. |
| Australia |
a country made up of this continent. Australia is also called the Commonwealth of Australia. Canberra is the capital of Australia. [1/2 definitions] |