simulator vs trainer

simulator and trainer both are nouns.

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

As nouns, trainer is a hyponym of simulator; that is, trainer is a word with a more specific, narrower meaning than simulator:

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

Other hyponyms of simulator include flight simulator.

simulator (noun)	trainer (noun)
a machine that simulates an environment for the purpose of training or research	simulator consisting of a machine on the ground that simulates the conditions of flying a plane
	one who trains other persons or animals