movie projector vs projector

movie projector and projector both are nouns.

Word	Noun	Adjective	Verb	Adverb
movie projector	Yes	No	No	No
projector	Yes	No	No	No

As nouns, projector is a hypernym of movie projector; that is, projector is a word with a broader meaning than movie projector:

movie projector: projects successive frames from a reel of film to create moving pictures
projector: an optical instrument that projects an enlarged image onto a screen

movie projector (noun)	projector (noun)
projects successive frames from a reel of film to create moving pictures	an optical instrument that projects an enlarged image onto a screen
	an optical device for projecting a beam of light