What does the word canvas mean?

Usage examples for canvas

  1. By- the- bye, Griggs, he called out through the canvas, I forgot to tell you. – Mr. Isaacs by F. Marion Crawford
  2. She had three hundred dollars, and it had been given her in a tiny brown canvas bag. – The Amazing Interlude by Mary Roberts Rinehart
  3. The two centre poles were adjusted to the ridge- pole, and all three were pushed in under the canvas. – The High School Boys' Fishing Trip by H. Irving Hancock