build up vs settle

build up is not a noun while settle is a noun.

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

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

Other hyponyms of build up include redevelop.

build up (noun)	settle (noun)
	a long wooden bench with a back

build up (verb)	settle (verb)
form or accumulate steadily	take up residence and become established
enlarge, develop, or increase by degrees or in stages	form a community
change the use of and make available or usable	become settled or established and stable in one's residence or life style
bolster or strengthen	establish or develop as a residence
prepare oneself for a military confrontation	make final; put the last touches on; put into final form
	become resolved, fixed, established, or quiet
	come as if by falling
	bring to an end; settle conclusively
	settle conclusively; come to terms
	end a legal dispute by arriving at a settlement
	come to terms
	accept despite lack of complete satisfaction
	get one's revenge for a wrong or an injury
	fix firmly
	arrange or fix in the desired order
	come to rest
	settle into a position, usually on a surface or ground
	cause to become clear by forming a sediment (of liquids)
	sink down or precipitate
	go under
	become clear by the sinking of particles
	dispose of; make a financial settlement