1. An idea, feeling, or opinion about something or someone, especially one formed without conscious thought or on the basis of little evidence.
2. An imitation of a person or thing, done to entertain.
3. A mark impressed on a surface.
4. The printing of a number of copies of a book, periodical, or picture for the issue at one time.
Plural noun: Impressions.
1. A copy of the first impression.
2. Her courtesy had made a good impression.