Longman Dictionary of Contemporary English - impression

~ n 1 »OPINION« the opinion or feeling you have about someone or something because of the way they seem + of  (What's your impression of Frank as a boss? | Now I have a very different impression of England.) first impression  (First impressions can be deceptive. | create a good/bad impression)  (Arriving late won't create a very favourable impression. | make an impression (on) (=make someone admire you))  (It was their first meeting, and Richard was determined to make an impression. | have/get the impression (that) (=think that something is a fact because of the way the situation seems))  (I get the distinct impression that we're not wanted here. | be under the impression (that) (=wrongly believe that something is a fact because of the way the situation seems))  (I'm sorry, I was under the impression that you were the manager.) 2 »COPYING SB« the act of copying the speech or behaviour of a famous person in order to make people laugh  (do an impression (of))  (Jean does a great impression of Tina Turner.) 3 »MARK« a mark left by pressing something into a soft surface  (An impression of a heel was left in the mud.) 4 »BOOK« all the copies of a book printed at one time  (- compare edition)