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Children's Dictionary
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comprehend to understand or grasp the meaning of.
comprehension the act, process, or result of comprehending; understanding.
comprehensive including everything or almost everything; wide in range.
compress to press into less space; squeeze closely together. [3 definitions]
comprise to be made up of; consist of.
compromise a settlement of a disagreement in which each side gives up something, or the result of such a settlement. [3 definitions]
compulsory required or necessary.
compute to figure out or calculate by using arithmetic. [2 definitions]
computer an electronic device that is used to store and sort information and work with data at a high speed.
computer graphics images produced by a computer than can be displayed on the screen or printed.
computer lab a room where there are many computers. Computer labs are often found in schools and libraries and can usually be used for free.
computer language a system of words and symbols that is used to program a computer; code. There are hundreds of computer languages, such as C, Cheetah, and JavaScript.
computer science the science and study of computers, including how they are made and how they work.
computer virus a code added to a computer program that can attach itself to and seriously damage other programs.
comrade a close friend who shares one's main interests.
con- a prefix that means "with" or "together."
concave curved inward like the inside of a bowl. (Cf. convex.)
conceal to hide or keep hidden from sight.
concede to admit the truth or justice of. [2 definitions]
conceited having too high an opinion of oneself; vain.
conceive to give shape to in the mind. [4 definitions]