cat - n. a small animal that often lives with humans

catch - v. to seize after a chase¹; to stop and seize with the hands

cause - v. to make happen; n. the thing or person that produces a result

ceasefire - n. a halt² in fighting, usually by agreement

celebrate - v. to honor³ a person or event with special activities

center - n. the middle of something; the place in the middle; a place that is the main point of an activity

century - n. one hundred years

ceremony - n. an act or series of acts done in a special way established by tradition

chairman - n. a person leading a meeting or an organized group

champion - n. the best; the winner

chance - n. a possibility of winning or losing or that something will happen

change - v. to make different; to become different

charge - v. to accuse someone of something, usually a crime; n. a statement in which someone is accused of something

chase - v. to run or go after someone or something

cheat - v. to get by a trick; to steal from

cheer - v. to shout approval⁴ or praise

chemicals - n. elements found in nature or made by people; substances used in the science of chemistry

chemistry - n. the scientific study of substances, what they are made of, how they act under different conditions, and how they form other substances

chief - n. the head or leader of a group; ad. leading; most important

child - n. a baby; a boy or girl

children - n. more than one child

choose - v. to decide between two or more

circle - n. a closed shape that has all its points equally distant from the center, like an "O"

citizen - n. a person who is a member of a country by birth or by law

city - n. any important large town

civilian⁵ - ad. not military

civil rights - n. the political, economic and social rights given equally to all people of a nation

claim - v. to say something as a fact

clash⁶ - n. a battle; v. to fight or oppose

clean - v. to make pure; ad. free from dirt or harmful substances ("clean water")

clear - ad. easy to see or see through; easily understood

clergy⁷ - n. a body of officials within a religious organization

climate - n. the normal weather conditions of a place

climb - v. to go up or down something by using the feet and sometimes the hands

clock - n. a device⁸ that measures and shows time

close - v. to make something not open; ad. near to

cloth - n. a material made from plants, chemicals, animal hair and other substances

clothes - n. what people wear

cloud - n. a mass of fog high in the sky