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
The school’s trainer, Seth Tisdale, told the school’s radio broadcast team that Miles chipped two teeth.
—Ryan Gaydos, Fox News, 24 Feb. 2025
Campbell has been working for the last two months with longtime offensive line trainer Duke Manyweather at OL Masterminds.
—Dane Brugler, The Athletic, 24 Feb. 2025
They’re demonstrated by trainer Melissa Gunn, of Pure Strength LA, whose team trains desk workers on how to protect their bodies through exercise.
—Deborah Vankin, Los Angeles Times, 18 Feb. 2025
Now, after divorcing personal trainer Sam Asghari — her third husband — Spears, 43, romance rumors are flaring back up with her newest man: contractor Paul Richard Soliz.
—Matt Robison, Newsweek, 18 Feb. 2025
See All Example Sentences for trainer
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Ryan Gaydos, Fox News, 24 Feb. 2025
Campbell has been working for the last two months with longtime offensive line trainer Duke Manyweather at OL Masterminds.
—Dane Brugler, The Athletic, 24 Feb. 2025
They’re demonstrated by trainer Melissa Gunn, of Pure Strength LA, whose team trains desk workers on how to protect their bodies through exercise.
—Deborah Vankin, Los Angeles Times, 18 Feb. 2025
Now, after divorcing personal trainer Sam Asghari — her third husband — Spears, 43, romance rumors are flaring back up with her newest man: contractor Paul Richard Soliz.
—Matt Robison, Newsweek, 18 Feb. 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 3 Mar. 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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