a strong, coarse unbleached cloth made from hemp, flax, or a similar yarn, used to make items such as sails and tents and as a surface for oil painting

the painting is oil on canvas

a canvas bag

cover with canvas

the door had been canvassed over

solicit votes from (electors or members)

in each ward, two workers canvassed some 2,000 voters

he's canvassing for the Green Party

propose (an idea or plan) for discussion

early retirement was canvassed as a solution to the problem of unemployment

an act of canvassing

a house-to-house canvass