divide vs divider

divide and divider both are nouns.

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

divide (noun)	divider (noun)
a ridge of land that separates two adjacent river systems	a vertical structure that divides or separates (as a wall divides one room from another)
a serious disagreement between two groups of people (typically producing tension or hostility)	a drafting instrument resembling a compass that is used for dividing lines into equal segments or for transferring measurements
	a person who separates something into parts or groups
	a taxonomist who classifies organisms into many groups on the basis of relatively minor characteristics

divide (verb)	divider (verb)
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