repose vs composure

repose and composure both are nouns.

Word	Noun	Adjective	Verb	Adverb
repose	Yes	No	Yes	No
composure	Yes	No	No	No

As nouns, composure is a hypernym of repose; that is, composure is a word with a broader meaning than repose:

Other hypernyms of repose include calm, calmness, equanimity.

repose (noun)	composure (noun)
freedom from activity (work or strain or responsibility)	steadiness of mind under stress
a disposition free from stress or emotion
the absence of mental stress or anxiety

repose (verb)	composure (verb)
put or confide something in a person or thing
lie when dead
put in a horizontal position
lean in a comfortable resting position
to put something (eg trust) in something
be inherent or innate in