noun[mass noun] (plural canvases or canvasses)
verb (canvases, canvassing, canvassed; US canvases, canvasing, canvased)[with object]
late Middle English: from Old Northern French canevas, based on Latin cannabis 'hemp', from Greek
Do not confuse canvas with canvass. Canvas means 'a type of strong cloth' (a canvas bag), whereas canvass means 'visit someone to seek their vote' (party workers canvassed 2,000 voters).