canvas

n. 1 strong coarse cloth used for sails and tents etc. And for oil-painting. 2 a painting on canvas, esp. In oils. v. (-ss-; us -s-) cover with canvas.  under canvas 1 in tents. 2 with sails spread. [latin: related to *cannabis]

n. A strong cloth made of hemp, flax, or cotton; -- used for tents, sails, etc.