An act or instance of retracting.
A continuous function from a topological space onto a subspace which is the identity on that subspace.
A statement printed or broadcast in a public forum which effects the withdrawal of an earlier assertion, and which concedes that the earlier assertion was in error.
The act of submitting or giving e.g. a completed piece of work.
The act of submitting or yielding; surrender.
A submission hold in wrestling, mixed martial arts, or other combat sports.
The thing which has been submitted.
A subset or component of a mission.