Meaning of “canvass” - Learner’s Dictionary

canvass

verb uk us /ˈkænvəs/
VOTE [ I, T ]

to try to persuade people to vote for someone in an election:

He's canvassing for the Labour party.
OPINION [ T ]

to ask people their opinion about something:

The study canvassed the views of over 9000 people.

(Definition of “canvass” from the Cambridge Learner’s Dictionary © Cambridge University Press)