cut back vs poll

cut back is not a noun while poll is a noun.

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

As verbs, poll is a hyponym of cut back; that is, poll is a word with a more specific, narrower meaning than cut back:

Other hyponyms of cut back include shear, pollard, pinch, top, disbud.

cut back (noun)	poll (noun)
	the counting of votes (as in an election)
	the top of the head
	the part of the head between the ears
	an inquiry into public opinion conducted by interviewing a random sample of people
	a tame parrot

cut back (verb)	poll (verb)
place restrictions on	convert into a pollard
cut down on; make a reduction in	get the opinions (of people) by asking specific questions
cultivate, tend, and cut back the growth of	vote in an election at a polling station
return in time	get the votes of