simulation vs charade

simulation and charade both are nouns.

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

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

Other hyponyms of simulation include appearance, show, make-believe, pretend, affectation, affectedness, mannerism, pose, masquerade.

simulation (noun)	charade (noun)
the act of giving a false appearance	making a false outward show
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)	a word acted out in an episode of the game of charades
representation of something (sometimes on a smaller scale)
(computer science) the technique of representing the real world by a computer program