No, they have completely different meanings. canvas is a coarse unbleached cloth. Canvass is to solicit political votes or close examination of things.
No. Canvass, meaning to scrutinize carefully, to solicit votes or to poll a region, is derived from canvas - possibly from the sense of tossing a person into the air with a sheet. Canvas itself is...
A canvass is a kind of survey. Police canvass a neighborhood following a major crime to determine if any of the residents have information about the crime. Canvas is a heavy fabric used in tents,...