canvassing vs bell ringing

canvassing and bell ringing both are nouns.

Word	Noun	Adjective	Verb	Adverb
canvassing	Yes	No	No	No
bell ringing	Yes	No	No	No

As nouns, canvassing and bell ringing are synonyms defined as:

canvassing and bell ringing: persuasion of voters in a political campaign

Other synonyms of canvassing include electioneering.

canvassing (noun)	bell ringing (noun)
persuasion of voters in a political campaign	playing a set of bells that are (usually) hung in a tower
	persuasion of voters in a political campaign
	the sound of someone playing a set of bells