trainer
noun(train-er)
a person who trains someone or something: such as:
trainer
noun(train-er)
one whose occupation is to guide or instruct people in fitness and exercise routines
trainer
noun(train-er)
one who oversees the training of animals
trainer
noun(train-er)
a sport shoe designed for cross-training
trainer
noun(train-er)
a stationary exercise device on which the user stands on two small rimmed platforms and moves them forward and back in an approximately elliptical path —called also elliptical machine