break up vs dissolve

break up is not a noun while dissolve is a noun.

Word	Noun	Adjective	Verb	Adverb
break up	No	No	Yes	No
dissolve	Yes	No	Yes	No

As verbs, break up and dissolve are synonyms defined as:

As verbs, break up and dissolve are synonyms defined as:

Other synonyms of break up include resolve.

As verbs, break up and dissolve are synonyms defined as:

break up and dissolve: bring the association of to an end or cause to break up

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

Other hyponyms of break up include disband.

break up (noun)	dissolve (noun)
	(film) a gradual transition from one scene to the next; the next scene is gradually superimposed as the former scene fades out

break up (verb)	dissolve (verb)
laugh unrestrainedly	pass into a solution
break or cause to break into pieces	cause to go into a solution
come to an end	come to an end
separate (substances) into constituent elements or parts	grow less and less substantial until it disappears
cause to go into a solution	become or cause to become soft or liquid
cause to separate	bring the association of to an end or cause to break up
close at the end of a session	declare void
bring the association of to an end or cause to break up	cause to fade away
make a break in	lose control emotionally
set or keep apart	cause to lose control emotionally
break violently or noisily; smash	stop functioning or cohering as a unit
attack with or as if with a pickaxe of ice or rocky ground, for example
release ice
destroy the completeness of a set of related items
take apart into its constituent pieces
suffer a nervous breakdown
disband
to cause to separate and go in different directions
discontinue an association or relation; go different ways