charade vs simulation

charade and simulation both are nouns.

Word	Noun	Adjective	Verb	Adverb
charade	Yes	No	No	No
simulation	Yes	No	No	No

As nouns, simulation is a hypernym of charade; that is, simulation is a word with a broader meaning than charade:

Other hypernyms of charade include feigning, pretence, pretending, pretense.

charade (noun)	simulation (noun)
making a false outward show	the act of giving a false appearance
a word acted out in an episode of the game of charades	the act of imitating the behavior of some situation or some process by means of something suitably analogous (especially for the purpose of study or personnel training)
	representation of something (sometimes on a smaller scale)
	(computer science) the technique of representing the real world by a computer program