acquire vs work up

acquire and work up both are verbs.

Word	Noun	Adjective	Verb	Adverb
acquire	No	No	Yes	No
work up	No	No	Yes	No

As verbs, work up is a hyponym of acquire; that is, work up is a word with a more specific, narrower meaning than acquire:

acquire: come to have or undergo a change of (physical features and attributes)
work up: develop

Other hyponyms of acquire include feather, fledge, regrow, spring, sprout, stock, stool, tiller, leaf, pod, teethe, pupate, get up, cut.

acquire (verb)	work up (verb)
come to have or undergo a change of (physical features and attributes)	develop
take on a certain form, attribute, or aspect	form or accumulate steadily
gain through experience	come up with
gain knowledge or skills	bolster or strengthen
come into the possession of something concrete or abstract
win something through one's efforts
locate (a moving entity) by means of a tracking system such as radar