poll vs circularise

poll is a noun but circularise is not a noun.

Word	Noun	Adjective	Verb	Adverb
poll	Yes	No	Yes	No
circularise	No	No	Yes	No

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

Other hyponyms of poll include circularize.

poll (noun)	circularise (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

poll (verb)	circularise (verb)
convert into a pollard	cause to become widely known
get the opinions (of people) by asking specific questions	distribute circulars to
vote in an election at a polling station	canvass by distributing letters
get the votes of