affectation vs simulation

affectation and simulation both are nouns.

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

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

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

affectation (noun)	simulation (noun)
a deliberate pretense or exaggerated display	the act of giving a false appearance
	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