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
Third Space master trainer, Lucie Cowan, breaks down some of the big ones.
—Lorena Meouchi, Vogue, 19 Mar. 2025
Finding the right home away from home is complicated, as some of the bigger clubs travel with more than 100 staff between the players, coaches, trainers, doctors, and front-office personnel.
—Michelle Kaufman, Miami Herald, 19 Mar. 2025
What To Know Waltz, speaking on ABC's This Week, outlined potential targets, which include Iranian ships near Yemen that provide intelligence to the Houthis, Iranian military trainers, and other logistic support.
—David Faris, Newsweek, 17 Mar. 2025
Coaches, administrators, trainers, journalists, TV hosts, conferences, colleges, media companies, broadcast networks, footwear and apparel businesses and (of course) the NCAA have all been paid, in some cases many millions of dollars.
—Michael McCann, Sportico.com, 17 Mar. 2025
See All Example Sentences for trainer
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Lorena Meouchi, Vogue, 19 Mar. 2025
Finding the right home away from home is complicated, as some of the bigger clubs travel with more than 100 staff between the players, coaches, trainers, doctors, and front-office personnel.
—Michelle Kaufman, Miami Herald, 19 Mar. 2025
What To Know Waltz, speaking on ABC's This Week, outlined potential targets, which include Iranian ships near Yemen that provide intelligence to the Houthis, Iranian military trainers, and other logistic support.
—David Faris, Newsweek, 17 Mar. 2025
Coaches, administrators, trainers, journalists, TV hosts, conferences, colleges, media companies, broadcast networks, footwear and apparel businesses and (of course) the NCAA have all been paid, in some cases many millions of dollars.
—Michael McCann, Sportico.com, 17 Mar. 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 23 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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