divide vs unravel

divide is a noun but unravel is not a noun.

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

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

divide (verb)	unravel (verb)
perform a division	become undone
move or break apart	become or cause to become undone by separating the fibers or threads of
force, take, or pull apart	disentangle
make a division or separation
separate into parts or portions
act as a barrier between; stand between