detachment vs breach

detachment and breach both are nouns.

Word	Noun	Adjective	Verb	Adverb
detachment	Yes	No	No	No
breach	Yes	No	Yes	No

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

Other hyponyms of detachment include break, falling out, rift, rupture, severance, break.

detachment (noun)	breach (noun)
the act of releasing from an attachment or connection	a failure to perform some promised act or obligation
coming apart	a personal or social separation (as between opposing factions)
avoiding emotional involvement	an opening (especially a gap in a dike or fortification)
a small unit of troops of special composition
the state of being isolated or detached

detachment (verb)	breach (verb)
	make an opening or gap in
	act in disregard of laws, rules, contracts, or promises