Definitions
1.NounSomeone who devises or suggests a project; a proposer or planner of something. .mw-parser-output .defdate{font-size:smaller}
2.NounAn optical device that projects a beam of light, especially one used to project an image (or moving images) onto a screen.
3.NounThat which projects or launches something."a depth charge projector"
4.NounOne who projects, or ascribes his/her own feelings to others.
5.NounAn operator that forms a projection.