circular vs handbill

circular and handbill both are nouns.

Word	Noun	Adjective	Verb	Adverb
circular	Yes	Yes	No	No
handbill	Yes	No	No	No

As nouns, circular and handbill are synonyms defined as:

circular and handbill: an advertisement (usually printed on a page or in a leaflet) intended for wide distribution

Other synonyms of circular include bill, broadsheet, broadside, flier, flyer, throwaway.

circular (noun)	handbill (noun)
an advertisement (usually printed on a page or in a leaflet) intended for wide distribution	an advertisement (usually printed on a page or in a leaflet) intended for wide distribution

circular (adjective)	handbill (adjective)
having the shape or form of a circle
describing a circle; moving in a circle