The lower or under side of a sirloin of beef; the fillet.
- To diminish or destroy the province or effectiveness of; undermine: "This celebration of opulence and wealth and power undercuts the character of the Statue of Liberty” ( Jesse Jackson). "The partnership between the United States and Western Europe is undercut by diverging economic interests” ( Scott Sullivan).
- To sell at a lower price than or to work for lower wages or fees than (a competitor).
- To make a cut under or below.
- To create an overhang by cutting material away from, as in carving.
- Sports To impart backspin to (a ball) by striking downward as well as forward, as in golf and baseball.
- Sports To cut or slice (a ball) with an underarm stroke, as in tennis.
- To engage in undercutting.
- A cut made in the under part to remove material.
- The material so removed.
- A notch cut in a tree to direct its fall and insure a clean break.
- Chiefly British The tenderloin of beef; the fillet.
- Sports A spin given to a ball opposite to its direction of flight; a backspin.
- Sports A cut or slice imparting such a spin.
- Sports A cut or slice made with an underarm motion.