Pronunciation: (noch),[key] —n. 1. an angular or V-shaped cut, indentation, or slit in an object, surface, or edge.
2. a cut or nick made in a stick or other object for record, as in keeping a tally.
3. New Eng. and Upstate New York.a deep, narrow opening or pass between mountains; gap; defile.
4. Informal.a step, degree, or grade: This camera is a notch better than the other. 5. Metall.a taphole in a blast furnace: iron notch; cinder notch.
—v.t. 1. to cut or make a notch in.
2. to record by notches: He notched each kill on the stick. 3. to score, as in a game: He notched another win. 4. notch up or down, to move up or down or increase or decrease by notches or degrees: The temperature has notched up another degree.