(cosmology, religion, philosophy) Eternal recurrence.

(tennis) A point made by the opponent returning the ball in such a way that the server does not make contact

plural of return ace

(mechanics) The spring that returns a door handle or knob to its original position when rotated.

(American football) A player on the receiving side whose primary job is to catch the football during a kickoff and carry the ball.

plural of punt returner

(American football) A player on the receiving team whose primary job is to catch the football during a punt and carry the ball.

plural of kickoff returner

(bowling) A rack for bowling balls at the start of a bowling lane, where the balls are transported after returning from the pinsetter.

plural of ball return