calm down vs appease

calm down and appease both are verbs.

Word	Noun	Adjective	Verb	Adverb
calm down	No	No	Yes	No
appease	No	No	Yes	No

As verbs, appease is a hyponym of calm down; that is, appease is a word with a more specific, narrower meaning than calm down:

Other hyponyms of calm down include lull, compose, assuage, conciliate, gentle, gruntle, lenify, mollify, pacify, placate.

calm down (verb)	appease (verb)
become quiet or less intensive	make peace with
make calm or still	overcome or allay
become quiet or calm, especially after a state of agitation	cause to be more favorably inclined; gain the good will of