impression

/ɪmˈpɹɛʃən/

noun

1
The indentation or depression made by the pressure of one object on or into another.
“His head made an impression on the pillow.”
2
The overall effect of something, e.g., on a person.
“He tried to make a good impression on his parents.”
3
A vague recalling of an event, a belief.
“I have the impression that he's already left for Paris.”
4
An impersonation, an imitation of the mannerisms of another individual.
5
An outward appearance.
6
An online advertising performance metric representing an instance where an ad is shown once.
7
The first coat of colour, such as the priming in house-painting etc.
8
(engraving) A print on paper from a wood block, metal plate, etc.
9
The vivid perception of something as it is experienced, in contrast to ideas or thoughts drawn from memory or the imagination.

1
To manipulate a blank key within a lock so as to mark it with impressions of the shape of the lock, which facilitates creation of a duplicate key.

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