assume

as|sume [ ə`sum ] verb transitive ***

1. ) to believe that something is true, even though no one has told you or even though you have no proof:

Everyone accepted she was telling the truth, although in fact this was quite a lot to assume.

assume (that): I'm assuming everyone here has an e-mail address.

I think we can safely assume that he is out of town.

assume someone/something to be/do something: I have always assumed her to be British.

a ) to be based on the idea that something is true:

This forecast assumes there will be no recession.

This score is assumed to represent the achievement of an average 7-year-old.

2. ) FORMAL to officially start a new job or position:

He formally assumes the presidency next week.

She has been invited to assume the role of mentor.

3. ) to start to control something although no one has officially asked you to:

His first priority was assuming control of the army.

4. ) FORMAL to begin to have a particular quality, shape, expression, etc.:

The animals assumed their normal resting position.

Time with the family has started to assume greater importance.

a ) to pretend to have a particular feeling or attitude, especially when this does not show how you are really thinking or feeling:

Fay assumed an air of innocence.