ch_____ = (v) (of birds or monkeys) to make a series of short high sounds / (of teeth) to knock together continuously because you are cold or frightened / to talk quickly and continuously, especially about things that are not impo...

(phr. v) to become extincte.g. A long time ago, the dinosaurs d____ o____.

(phr. v) to use all of something so that there is none left . e.g. "Making soup is a good way of ____ing u_ leftover vegetables."

(v) to make slight changes to a machine, system, etc. to improve it / to pull or twist something suddenly e.g. "I think you'll have to t____ these figures a little before you show them to the boss."

b____ = (n/v) a shout in a loud deep voice, especially when you are angry e.g. " 'How dare you?!', he b____ed."

(adj) large in amount, or impressive, and usually costing a lot of money e.g. "They received l_____ gifts for their wedding."

(phr. v) (usually disapproving) to mention something that has been forgotten, especially something unpleasant or embarrassinge.g. The papers keep trying to d______ u__ details of his past love life.

(n) making somebody less likely to do something e.g. The nuclear d_____ protects us from foreign attack.

(expression) without planning e.g. "I decided to do it o_ a w_____. I just thought 'why not?' and I signed up at the last minute."

(phr. v) to make something fall down by cutting it at the base"It's a shame that so many trees have been c___ d____ in the recent past."

e_____ somebody/something (in something) = (formal) to involve somebody/something in a bad situation that it is not easy to escape from

(expression) don't demonstrate something. e.g. "He s___ n_ s____ o_ getting tired."