A submission is a combat sports term for yielding to the opponent, and hence resulting in an immediate defeat. The submission - then also referred to as a "tap out" or "tapping out" - is often performed by clearly tapping the floor or the opponent with the hand or sometimes with the foot, to signal the opponent and possibly the referee of the submission. In some combative sports where the fighter has cornermen, the corner can also stop the fight by "throwing in the towel", which may count as a submission.

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