plural trainers
1
: a person who trains someone or something: such as
a
: someone who oversees the training of people in a specific discipline
When we run the track, Stan Ward, a boxing and conditioning trainer, times us.—
Bridgett Riley
Bridgett Riley
especially
: personal trainer
A good trainer does more than count your biceps curls: She suggests the best types of exercises for your goal … and teaches you how to do the moves correctly. —Sarah Bowen Shea
Sarah Bowen Shea
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
: athletic trainer
… 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
Effective training requires understanding how their joints move and how their vision systems interpret surroundings, allowing trainers to refine control methods and improve task execution efficiency, reports PDO.
—Jijo Malayil, Interesting Engineering, 3 Apr. 2026
Student trainers can be found signing in their classmates, wrapping wrists and even assisting on the sidelines.
—Krystle Rich, CBS News, 3 Apr. 2026
Given Joe’s career as a personal trainer and that the couple actually happened to meet at the gym, the groom wanted to arrange a workout the morning of the wedding.
—Kaitlin Menza, Condé Nast Traveler, 2 Apr. 2026
But Rodón will travel to see team trainers in New York before Friday’s home opener.
—Brendan Kuty, New York Times, 2 Apr. 2026
See All Example Sentences for trainer
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Jijo Malayil, Interesting Engineering, 3 Apr. 2026
Student trainers can be found signing in their classmates, wrapping wrists and even assisting on the sidelines.
—Krystle Rich, CBS News, 3 Apr. 2026
Given Joe’s career as a personal trainer and that the couple actually happened to meet at the gym, the groom wanted to arrange a workout the morning of the wedding.
—Kaitlin Menza, Condé Nast Traveler, 2 Apr. 2026
But Rodón will travel to see team trainers in New York before Friday’s home opener.
—Brendan Kuty, New York Times, 2 Apr. 2026
See All Example Sentences for trainer
Cite this Entry
“Trainer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trainer. Accessed 5 Apr. 2026.
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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