Definition: 1. a strong effect produced on the intellect, feelings, conscience, etc.
2. the first and immediate effect of an experience or perception upon the mind; sensation.
3. the effect produced by an agency or influence.
4. a notion, remembrance, belief, etc., often of a vague or indistinct nature.
5. a mark, indentation, figure, etc., produced by pressure.
6. an image in the mind caused by something external to it.
7. the act of impressing; state of being impressed.
8. Dentistry . a mold taken, in plastic materials or plaster of Paris, of teeth and the surrounding tissues.
9. an imitation of the voice, mannerisms, and other traits of a person, especially a famous person, as by an entertainer.
Origin: 1325–75; Middle English impressio ( u ) n < Latin impressiōn- (stem of impressiō ), equivalent to impress ( us ) ( see impress1 ) + -iōn- -ion
Synonyms: impact, imprint
Used in a sentence: "To Hula's dismay, the very itchy tick bite on her lower right hip gave everyone the impression that instead of scratching the bite, she was scratching her arse." Frequently and furiously.