cutback vs cut back

cutback is a noun but cut back is not a noun.

Word	Noun	Adjective	Verb	Adverb
cutback	Yes	No	No	No
cut back	No	No	Yes	No

cutback (noun)	cut back (noun)
a reduction in quantity or rate

cutback (verb)	cut back (verb)
	place restrictions on
	cut down on; make a reduction in
	cultivate, tend, and cut back the growth of
	return in time