build up vs build up

build up and build up both are verbs.

Word	Noun	Adjective	Verb	Adverb
build up	No	No	Yes	No
build up	No	No	Yes	No

build up (verb)	build up (verb)
form or accumulate steadily	form or accumulate steadily
enlarge, develop, or increase by degrees or in stages	enlarge, develop, or increase by degrees or in stages
change the use of and make available or usable	change the use of and make available or usable
bolster or strengthen	bolster or strengthen
prepare oneself for a military confrontation	prepare oneself for a military confrontation