break up vs divide

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

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

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

Other hypernyms of break up include disunite, part, separate.

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

Other hypernyms of break up include part, separate.

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

Other hypernyms of break up include separate.

break up (noun)	divide (noun)
	a ridge of land that separates two adjacent river systems
	a serious disagreement between two groups of people (typically producing tension or hostility)

break up (verb)	divide (verb)
laugh unrestrainedly	perform a division
break or cause to break into pieces	move or break apart
come to an end	force, take, or pull apart
separate (substances) into constituent elements or parts	make a division or separation
cause to go into a solution	separate into parts or portions
cause to separate	act as a barrier between; stand between
close at the end of a session
bring the association of to an end or cause to break up
make a break in
set or keep apart
break violently or noisily; smash
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