trainer
Americannoun
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trainers
plural
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a person or thing that trains.
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a staff member on an athletic team who gives first aid and therapy to injured players.
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a person who trains athletes; coach.
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a person who trains racehorses or other animals for contests, shows, or performances.
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an airplane or a simulated aircraft used in training aircrew members, especially pilots.
noun
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a person who trains athletes in a sport
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a piece of equipment employed in training, such as a simulated aircraft cockpit
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horse racing a person who schools racehorses and prepares them for racing
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(plural) an informal name for training shoes
Other Word Forms
Noun Inflected Forms
Etymology
Origin of trainer
Explanation
A trainer is someone who teaches or coaches someone, like the trainer at the gym who promises that she'll have you ready to run a marathon in four months. Some trainers can teach you how to do sit ups, while others can instruct you to program a computer or be an effective leader. Dog trainers teach dogs to follow commands — and they teach dog owners to give commands effectively. The noun trainer comes from the verb train, "to discipline or teach," from an earlier sense, "to manipulate to bring a desired form," the way a gardener trains a rose to grow up a trellis.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
“Whatever’s going on in his life, he’s locked in and he makes time for training,” says longtime trainer Andrew Spruill.
From The Wall Street Journal ● Sep. 30, 2026
Katie Suiters, a 38-year-old media trainer in McLean, Va., decided to upgrade to the Venture X card after she noticed more Capital One lounges at airports.
From The Wall Street Journal ● Sep. 25, 2026
He said there are two options for ejection that can be taken in a T2 jet - which usually involves an experienced pilot trainer and a student.
From BBC ● Sep. 23, 2026
He covered his face with his left hand and was able to jog toward the Cubs dugout, where a trainer helped him down the steps and into the clubhouse.
From Los Angeles Times ● Sep. 21, 2026
“I knew the trainer would drag ’em outta here soon as he saw the cottonmouths.
From "Hoot" by Carl Hiaasen
Before Kelce even showed up to training camp, his trainers had proof it was working.
From The Wall Street Journal ● Sep. 30, 2026
But his team of trainers had a hunch that he might have another year in him.
From The Wall Street Journal ● Sep. 30, 2026
Fairs says she has received thousands of messages from women about how her content has encouraged them to lace up their trainers, and believes recent trends of female success in ultra-running are just the start.
From BBC ● Sep. 9, 2026
Donald worked out for Rams defensive line coach Giff Smith and Rams trainers during training camp at Loyola Marymount.
From Los Angeles Times ● Aug. 30, 2026
Rival trainers who claimed horses from Irwin sometimes found them so exhausted that they had to give them long layoffs before they were capable of running again.
From "Seabiscuit: An American Legend" by Laura Hillenbrand
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
