Canvass and Exit poll

Canvass noun - An inquiry into public opinion conducted by interviewing a random sample of people.

Exit poll and canvass are semantically related In some cases you can replace phrase "Exit poll" with "Canvass", this terms are similar.

Exit poll noun - A poll of voters as they leave the voting place; usually taken by news media in order to predict the outcome of an election.

Canvass and exit poll are semantically related in poll of people after voting topic. You can use "Canvass" instead a noun phrase "Exit poll".