trainer

noun

train·​er ˈtrā-nər 

1

: a person who trains someone or something: such as

a

: one whose occupation is to guide or instruct people in fitness and exercise routines

a personal trainer

When we run the track, Stan Ward, a boxing and conditioning trainer, times us.

—Bridgett Riley

b

: one who oversees the training of animals

a dog/horse trainer

A trainer uses the clicker to create an auditory cue that marks a particular behavior and then rewards the dog with a treat.

—C. C. Holland

2

: a person who treats the ailments and minor injuries of the members of an athletic team

… he landed so hard that the wind was knocked out of him. He lay writhing on the ground as Herm Schneider, the team trainer, rushed to his side.

—William Nack

3

: something (such as a machine or vehicle) used in training see also elliptical trainer

4

chiefly British : sneaker sense 2

They wore trainers, scuffed and old, with the laces loose and the tongues protruding in defiance at the ankle.

—M. J. Trow

Synonyms

• coach

Examples of trainer in a Sentence

the boxer and his trainer

She hired a personal trainer.

Recent Examples on the Web

Chalamet stuck to his, so far, quite successful and laidback formula, forgoing his recent Bob Dylan cosplay for a distressed and stiff collared brown leather jacket with a bright yellow shirt, khaki cargo jeans, and white trainers. —Anna Cafolla, Vogue, 19 Dec. 2024

My set was the loudest, with three or four people, and either dog trainers or parents. —Kate Aurthur, Variety, 19 Dec. 2024

While comments made by Mr Parry were potentially offensive to some viewers, they were met with significant challenge from dog trainer and XL Bully owner, Ms Taiwo, who put forward a strongly opposed point of view. —Max Goldbart, Deadline, 19 Dec. 2024

The proposal would also help pay for the cost of vanning horses and relocation expenses for horsemen, including grooms and trainers. —John Cherwa, Los Angeles Times, 16 Dec. 2024

Word History

First Known Use

1543, in the meaning defined at sense 1

Phrases Containing trainer

• athletic trainer
• cross-trainer
• elliptical trainer

Kids Definition

trainer

noun

train·​er ˈtrān-ər 

1

: one that trains

2

: a person who treats the minor ailments and injuries of the members of an athletic team