comrade comrades
NOUN a companion, especially in battle
con cons, conning, conned
VERB 1 If someone cons you, or you are conned, you are tricked into doing something. • He conned me into buying the tickets.
NOUN 2 a trick that makes you believe or do something that you would not normally believe or do
concave
ADJECTIVE A concave surface curves inwards, rather than being level or bulging outwards.
ANTONYM: convex
conceal conceals, concealing, concealed
VERB If you conceal something, you hide it.
conceited
ADJECTIVE Someone who is conceited is too proud of their appearance or abilities.
SYNONYMS: bigheaded, self-important
conceive conceives, conceiving, conceived
VERB 1 If you can’t conceive of something, you can’t imagine it or believe it. • He couldn’t conceive of anything more fun than surfing.
2 If you conceive something such as a plan, you think of it and work out how it could be done. • Alex conceived the idea while eating his lunch.
3 When a woman conceives, she becomes pregnant.
concentrate concentrates, concentrating, concentrated
VERB 1 If you concentrate on something, you give it all your attention. • I need to concentrate on my homework.
2 When something is concentrated in one place, it is all there rather than in several places. • The shops were concentrated in the town centre.
concentrated
ADJECTIVE A concentrated liquid has been made stronger by having water removed from it. • concentrated orange juice
concentration concentrations
NOUN 1 the ability to give your full attention to something you do or hear
2 A concentration of something is a large amount of it in one place.
concept concepts
NOUN an abstract or general idea
conception conceptions
NOUN the idea you have of something
concern concerns, concerning, concerned
NOUN 1 worry about something or someone
2 If something is your concern, it is your duty or responsibility.
VERB 3 If something concerns you or if you are concerned about it, it worries you.
concerned ADJECTIVE
concerning
PREPOSITION You use concerning to show what something is about. • an article concerning fox hunting
concert concerts
NOUN a public performance by musicians
concession concessions
NOUN If you make a concession, you agree to let someone have or do something.
concise
ADJECTIVE giving all the necessary information using as few words as possible • a concise explanation
SYNONYMS: brief, short
concisely ADVERB
conclude concludes, concluding, concluded
VERB 1 If you conclude something, you examine the facts and decide what your opinion is. • We concluded that the letter was a fake.
2 When you conclude something, you finish it.
conclusion conclusions
NOUN 1 the end of something
2 a final decision about something • We wanted to go for a swim in the sea, but we came to the conclusion that it was too cold.