Meaning of IMPRESSION in English

IMPRESSION

(OPINION) [noun] [C] - an idea or opinion of what something is likeI didn't get much of an impression of the place (= I didn't see or experience it fully) because we drove through it in the dark.What was your impression of Charlotte's husband? (= What did you think of him?)I don't tend to trust first impressions.When I first met him I got/had the impression that he was a rather shy, nervous sort of a bloke. [+ that clause]From what you said I was under/of the impression (= I understood) that you didn't get on too well. [+ that clause]I was under the mistaken impression that they were married. [+ that clause]

Cambridge English vocab.      Кембриджский английский словарь.