is a soft white rock. It can be made into sticks for writing on blackboards.
challenge challenges, challenging, challenged
NOUN 1 A challenge is something new and exciting that needs a lot of effort. Learning how to cook is a new challenge for me.
VERB 2 If someone challenges you, they ask you to have a competition with them.
champion champions NOUN
A champion is a person who has beaten everyone else in a contest.
chance chances
NOUN 1 If there is a chance that something will happen, it might happen.
NOUN 2 If you are given a chance to do something, you are allowed to do it if you want to.
by chance PHRASE If something happens by chance, it has not been planned.
change changes, changing, changed
VERB 1 When something changes, it becomes different.
VERB 2 When you change your clothes, you put on different ones.
NOUN 3 If there is a change in something, it is different in some way.
NOUN 4 Change is the money you are given when you pay more than the right amount for something.
channel channels
NOUN 1 A channel is a passage for water or other liquid.
NOUN 2 Television companies use channels to broadcast programmes.
chaos NOUN
Chaos is a state of complete confusion, where nothing is organized.
chapter chapters NOUN
A chapter is a part of a book.
character characters
NOUN 1 The characters of a book, film or play are the people it is about.
NOUN 2 Someone’s character is the sort of person they are. She has a kind character.
charge charges, charging, charged
VERB 1 If someone charges you money, they ask you to pay for something.
VERB 2 If something or someone charges towards you, they rush forward.
in charge PHRASE If you are in charge of something, you are the person looking after it.
charity charities NOUN
A charity is an organization which raises money for a particular cause, such as people in need.
charm charms
NOUN 1 A charm is a small ornament that is fixed to a bracelet or necklace.
NOUN 2 A charm is also a magical spell or an object that is supposed to bring good luck.
chart charts
NOUN 1 A chart is a sheet of paper that shows things like dates or numbers.
NOUN 2 A chart can also be a map of the sea or of the stars.
chase chases, chasing, chased VERB
If you chase someone, you run after them to try and catch them.
chat chats NOUN
A chat is a friendly talk about things that are not very important.
chatroom chatrooms NOUN
A chatroom is a site on a computer network where people discuss a particular subject.
chatter chatters, chattering, chattered VERB
When people chatter, they talk about unimportant things.
cheap cheaper, cheapest ADJECTIVE
Something cheap costs very little, or less than you might expect.
cheat cheats, cheating, cheated VERB
When someone cheats, they lie or do unfair things to get what they want.
check checks, checking, checked
VERB 1 If you check something, you make sure it is correct or safe.
NOUN 2 A check is a pattern of squares.
checkout checkouts NOUN
A checkout is the place in a supermarket where you pay.
cheek cheeks NOUN
Your cheeks are the sides of your face below your eyes.
cheeky cheekier, cheekiest ADJECTIVE
Cheeky speech or behaviour is rude and disrespectful.
cheer cheers, cheering, cheered VERB
When you cheer, you shout to show you are pleased about something or to encourage a person or team.
cheerful ADJECTIVE
Someone who is cheerful shows they are feeling happy.
cheese cheeses NOUN
Cheese is a food made from milk. Some cheeses have a strong flavour.
See Other foods on page 261
cheetah cheetahs NOUN
A cheetah is a large wild animal of the cat family, with black spots.
chef chefs NOUN
A chef is the head cook in a restaurant or hotel.
chemist chemists
NOUN 1 A chemist is a person who makes up medicine.
NOUN 2 The chemist is a shop where you can buy medicine and things like soap and toothpaste.
NOUN 3 A chemist can be a scientist trained in chemistry.
chemistry NOUN
Chemistry is the scientific study of how substances are made up and how they work together.
cheque cheques NOUN
A cheque is a piece of paper that people use to pay for things.
cherry cherries NOUN
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