subdivide vs subdivision

subdivide is not a noun while subdivision is a noun.

Word	Noun	Adjective	Verb	Adverb
subdivide	No	No	Yes	No
subdivision	Yes	No	No	No

subdivide (noun)	subdivision (noun)
	the act of subdividing; division of something previously divided
	a section of a section; a part of a part; i.e., a part of something already divided
	a self-contained part of a larger composition (written or musical)
	a division of some larger or more complex organization
	an area composed of subdivided lots

subdivide (verb)	subdivision (verb)
divide into smaller and smaller pieces
form into subdivisions