work up vs acquire

work up and acquire both are verbs.

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

As verbs, acquire is a hypernym of work up; that is, acquire is a word with a broader meaning than work up:

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

Other hypernyms of work up include develop, get, grow, produce.

work up (verb)	acquire (verb)
develop	come to have or undergo a change of (physical features and attributes)
form or accumulate steadily	take on a certain form, attribute, or aspect
come up with	gain through experience
bolster or strengthen	gain knowledge or skills
	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