keep apart vs divide

keep apart is not a noun while divide is a noun.

Word	Noun	Adjective	Verb	Adverb
keep apart	No	No	Yes	No
divide	Yes	No	Yes	No

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

Other hypernyms of keep apart include disunite, part, separate.

keep apart (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)

keep apart (verb)	divide (verb)
set apart from others	perform a division
	move or break apart
	force, take, or pull apart
	make a division or separation
	separate into parts or portions
	act as a barrier between; stand between