(cycling) A trainer equipped with a fan to simulate pedal resistance and airflow.

An elliptical trainer.

(aviation, historical) Any of a series of early electromechanical flight simulators

Someone employed to help another with their fitness, especially by means of a personalised diet program and exercise regime.

(UK, aviation, historical) A machine resembling an aeroplane but unable to fly, used for training pilots.

plural of trainer liner

A short low sock that does not reach the ankle.

An exercise machine in which the feet of the user travel an elliptic path; used to simulate stair climbing, walking, or running without causing excessive pressure to the joints.