1) (a piece of) strong, course cloth used for tents, sails, bags etc and by artists for oil-paintings (canvas)

2) the material from animal skin, used for making shoes, bags etc (leather)

3) bags etc and their contents (to be) taken on a journey (luggage)

4) one of a pair of baskets placed across the back of a horse or donkey; one of a pair of bags on either side of the back of a bike or motorbike (pannier)