What is the meaning of Projector?

Someone who devises or suggests a project; a proposer or planner of something.

An optical device that projects a beam of light, especially one used to project an image (or moving images) onto a screen.

That which projects or launches something.

One who projects, or ascribes his/her own feelings to others.

An operator that forms a projection.

projector (projection device)

a projector (projection device)

pre-reform spelling (used until 1943 in Brazil and 1990 in Portugal) of projetor; still used where the agreement hasn’t come into effect and may occur as a sporadic misspelling

Source: wiktionary.org