Saw1  —n. 1 hand tool with a toothed blade used to cut esp. Wood with a to-and-fro movement. 2 power tool with a toothed rotating disk or moving band, for cutting. —v. (past part. Sawn or sawed) 1 cut (wood etc.) Or make (boards etc.) With a saw. 2 use a saw. 3 a move with a sawing motion (sawing away on his violin). B divide (the air etc.) With gesticulations. [old english]