Used informally to mean "completely; outright".
Definitionen
Completely; entirely; outright. The boxer knocked his opponent clean out in the first round.
Countable; denotes an act of cleaning or a weight-lifting movement.
Definitionen
An act or instance of making something clean; a cleaning. The windows need a good clean before the guests arrive.
A weight-lifting movement in which a barbell is lifted from the floor to shoulder height in one motion. Her clean was smooth, setting her up perfectly for the jerk.