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clamber (verb)

Definition: to climb up, across or into somewhere with difficulty, using the hands and the feet

Example sentence:

Ms Lee clambered into bed after a hard day’s work.

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belligerent (adjective)

Definition: wishing to fight or argue

Example sentence:

He became belligerent when confronted by his teachers.

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tumultuous (adjective)

Definition: very loud, or full of confusion, change or uncertainty

Example sentence:

The returning athletes were given a tumultuous welcome.

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undermine (verb)

Definition: to make someone less confident, less powerful or less likely to succeed, or to make something weaker, often gradually

Example sentence:

Criticism just undermines their confidence.

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contemplate (verb)

Definition:to spend time considering a possible future action, or to consider one particular thing for a long time in a serious and quiet way

Example sentence:

You’re not contemplating a change of school, are you?

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fathom (verb)

Definition: to discover the meaning of something or to understand someone

Example sentence:

I cannot fathom why he would not talk to me.