durance vs imprisonment

durance and imprisonment both are nouns.

Word	Noun	Adjective	Verb	Adverb
durance	Yes	No	No	No
imprisonment	Yes	No	No	No

As nouns, imprisonment is a hypernym of durance; that is, imprisonment is a word with a broader meaning than durance:

Other hypernyms of durance include captivity, immurement, incarceration.

durance (noun)	imprisonment (noun)
imprisonment (especially for a long time)	the act of confining someone in a prison (or as if in a prison)
	putting someone in prison or in jail as lawful punishment
	the state of being imprisoned