Nose tackle is a position in American football that is also referred to as a "zero-technique" or "one-technique" player. Synonyms for the nose tackle position include "defensive tackle," "interior lineman," "defensive interior lineman," and "defensive tackle nose." The nose tackle's primary role is to block opposing players, particularly those on the offensive line, and to penetrate the line of scrimmage to impact the run game. Other terms that may be used to describe the nose tackle include "run-stuffer," "gap-plugger," or simply "DT." Regardless of the synonyms or titles used, players in the nose tackle position are a critical factor in the success of any defensive scheme.