bill poster vs poster

bill poster and poster both are nouns.

Word	Noun	Adjective	Verb	Adverb
bill poster	Yes	No	No	No
poster	Yes	No	No	No

As nouns, bill poster and poster are synonyms defined as:

bill poster and poster: someone who pastes up bills or placards on walls or billboards

Other synonyms of bill poster include bill sticker.

bill poster (noun)	poster (noun)
someone who pastes up bills or placards on walls or billboards	a horse kept at an inn or post house for use by mail carriers or for rent to travelers
	a sign posted in a public place as an advertisement
	someone who pastes up bills or placards on walls or billboards