noun

1. a projecting or being projected
2. something that projects, or juts out
3. something that is projected; specif., in map making, the representation on a plane of the earth's surface (or the celestial sphere) or of a part thereof
4. a prediction or advance estimate based on known data or observations; extrapolation
5. Psychiatry the unconscious act or process of ascribing to others one's own ideas, impulses, or emotions, esp. when they are considered undesirable or cause anxiety
6. Photog. the process of projecting an image, as from a transparent slide, upon a screen, etc.

Etymology: MFr < L projectio