(countable) A seeking or solicitation of donations, information, opinions, support, etc.
(countable, specifically, politics) A seeking or solicitation, or determination, of support or favourable votes in a forthcoming election or poll.
(countable, US, politics) A scrutiny of the votes cast in an election to reject irregular votes; also, a tally, audit, and certification of votes.
A noun "canvass" represents a thorough discussion or investigation, as well as rejection at an election or of a suit.
Obsolete spelling of canvas
Thoroughly examine or investigate something physically or by discussion, scrutinize election ballots or votes, seek donations, information, opinions, support, and seek the support of voters or a constituency in an election or poll.
Criticize, attack, or beat someone or something, or toss someone in a canvas sheet for fun or punishment.
To debate, discuss, seek or solicit donations, information, opinions, support, conduct a survey, and specifically in politics, to campaign and seek the support of voters or a constituency in an election or poll.