bell ringing vs canvassing

bell ringing and canvassing both are nouns.

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

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

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

Other synonyms of bell ringing include electioneering.

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