canvasser vs fundraiser

canvasser and fundraiser both are nouns.

Word	Noun	Adjective	Verb	Adverb
canvasser	Yes	No	No	No
fundraiser	Yes	No	No	No

As nouns, fundraiser is a hyponym of canvasser; that is, fundraiser is a word with a more specific, narrower meaning than canvasser:

canvasser (noun)	fundraiser (noun)
someone who conducts surveys of public opinion	a social function that is held for the purpose of raising money
someone who examines votes at an election	someone who solicits financial contributions
a petitioner who solicits contributions or trade or votes
a person who takes or counts votes