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
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
C. C. Holland2
: 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
William Nack3
: 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
M. J. TrowExamples of trainer in a Sentence
the boxer and his trainer
She hired a personal trainer.
Recent Examples on the Web
Horse trainer Al Stall stands atop a wall of pavers just outside the rail near the third turn of the track.
—Dana O'Neil, New York Times, 3 May 2025
Hence the trainers’ longtime obsession with creating a pool of calm focus on the work.
—Guy Martin, Forbes.com, 3 May 2025
This swing trainer is designed exclusively for women with the perfect length, grip, weight and flex to match natural tempo and build confidence from the first swing.
—Nora Colomer
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 3 May 2025
Often pairing hers with a vest and trainers, or sometimes a lil stiletto, the 28-year-old model has got straight leg outfit combos down to a fine art.
—Daisy Jones, Vogue, 2 May 2025
See All Example Sentences for trainer
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Dana O'Neil, New York Times, 3 May 2025
Hence the trainers’ longtime obsession with creating a pool of calm focus on the work.
—Guy Martin, Forbes.com, 3 May 2025
This swing trainer is designed exclusively for women with the perfect length, grip, weight and flex to match natural tempo and build confidence from the first swing.
—Nora Colomer
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 3 May 2025
Often pairing hers with a vest and trainers, or sometimes a lil stiletto, the 28-year-old model has got straight leg outfit combos down to a fine art.
—Daisy Jones, Vogue, 2 May 2025
See All Example Sentences for trainer
Cite this Entry
“Trainer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trainer. Accessed 14 May. 2025.
Copy CitationKids 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
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