usurp vs conquer

usurp and conquer both are verbs.

Word	Noun	Adjective	Verb	Adverb
usurp	No	No	Yes	No
conquer	No	No	Yes	No

As verbs, conquer is a hyponym of usurp; that is, conquer is a word with a more specific, narrower meaning than usurp:

usurp: seize and take control without authority and possibly with force; take as one's right or possession
conquer: take possession of by force, as after an invasion

Other hyponyms of usurp include annex, appropriate, capture, seize, preoccupy, hijack, raid.

usurp (verb)	conquer (verb)
seize and take control without authority and possibly with force; take as one's right or possession	bring under control by force or authority
take the place of	overcome by conquest
	take possession of by force, as after an invasion