depopulate vs shrink

depopulate is not a noun while shrink is a noun.

Word	Noun	Adjective	Verb	Adverb
depopulate	No	No	Yes	No
shrink	Yes	No	Yes	No

As verbs, shrink is a hypernym of depopulate; that is, shrink is a word with a broader meaning than depopulate:

Other hypernyms of depopulate include reduce.

depopulate (noun)	shrink (noun)
	a physician who specializes in psychiatry

depopulate (verb)	shrink (verb)
reduce in population	become smaller or draw together
	reduce in size; reduce physically
	wither, as with a loss of moisture
	decrease in size, range, or extent
	draw back, as with fear or pain