flight simulator vs simulator

flight simulator and simulator both are nouns.

Word	Noun	Adjective	Verb	Adverb
flight simulator	Yes	No	No	No
simulator	Yes	No	No	No

As nouns, simulator is a hypernym of flight simulator; that is, simulator is a word with a broader meaning than flight simulator:

flight simulator: simulator consisting of a machine on the ground that simulates the conditions of flying a plane
simulator: a machine that simulates an environment for the purpose of training or research

flight simulator (noun)	simulator (noun)
simulator consisting of a machine on the ground that simulates the conditions of flying a plane	a machine that simulates an environment for the purpose of training or research