isolate vs divide

isolate is not a noun while divide is a noun.

Word	Noun	Adjective	Verb	Adverb
isolate	No	No	Yes	No
divide	Yes	No	Yes	No

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

Other hypernyms of isolate include disunite, part, separate.

isolate (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)

isolate (verb)	divide (verb)
place or set apart	perform a division
obtain in pure form	move or break apart
set apart from others	force, take, or pull apart
separate (experiences) from the emotions relating to them	make a division or separation
	separate into parts or portions
	act as a barrier between; stand between