Definition of "Canvas" :

noun: a heavy, closely woven fabric (used for clothing or chairs or sails or tents)

noun: the mat that forms the floor of the ring in which boxers or professional wrestlers compete

"The boxer picked himself up off the canvas."

noun: an oil painting on canvas fabric

noun: a tent made of canvas fabric

noun: a large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel

noun: the setting for a narrative or fictional or dramatic account

"The crowded canvas of history."

verb: cover with canvas

"She canvassed the walls of her living room so as to conceal the ugly cracks."