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
Morant hit the floor hard and stayed down for several minutes while being looked at by team trainers.
—William Guillory, New York Times, 25 Apr. 2025
Diaz then left the game with trainer Joe Golia, a scary sight for the 36,863 fans in attendance.
—Abbey Mastracco, New York Daily News, 23 Apr. 2025
Try it with: A black maxi in jersey, a boxy T-shirt, tube socks, and classic trainers
Style tip: Layer a lightweight cardigan or a hoodie at the waist to play with proportion.
—Ruhama Wolle, Glamour, 23 Apr. 2025
But Machold offers compelling details about how India tried to adopt these technologies of governance, using Israeli trainers for its own counterterrorism units, for instance.
—Foreign Affairs, 22 Apr. 2025
See All Example Sentences for trainer
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William Guillory, New York Times, 25 Apr. 2025
Diaz then left the game with trainer Joe Golia, a scary sight for the 36,863 fans in attendance.
—Abbey Mastracco, New York Daily News, 23 Apr. 2025
Try it with: A black maxi in jersey, a boxy T-shirt, tube socks, and classic trainers
Style tip: Layer a lightweight cardigan or a hoodie at the waist to play with proportion.
—Ruhama Wolle, Glamour, 23 Apr. 2025
But Machold offers compelling details about how India tried to adopt these technologies of governance, using Israeli trainers for its own counterterrorism units, for instance.
—Foreign Affairs, 22 Apr. 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 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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