prep
1 Americannoun
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a preliminary or warm-up activity or event; trial run.
The race is a good prep for the Kentucky Derby.
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preparation.
dealer prep on the car included.
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the act of preparing a patient for a medical or surgical procedure.
adjective
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preparatory.
a prep school.
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involving or used for preparation.
the mortuary's prep room.
verb (used with object)
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to prepare (a person) for a test, debate, etc.
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to prepare (a patient) for a medical or surgical procedure, as by shaving and washing the skin with an antibacterial soap.
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to prepare (a vehicle or craft) for sale, use, a test drive, or a race.
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to prepare (something); make ready.
You can prep the onions and peppers in advance.
verb (used without object)
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to prepare; get ready.
to prep for the game.
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to attend a preparatory school.
noun
abbreviation
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preparation.
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preparatory.
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prepare.
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preposition.
abbreviation
-
preparation
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preparatory
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preposition
noun
verb
Usage
What else does prep mean? Preps are people who live a preppy lifestyle, associated with young, rich, usually white men and their stereotypical fashion.
Etymology
Origin of prep
First recorded in 1860–65; by shortening
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.
"Whether you're living with a partner, housemate, or family, your daily interactions -- from hugging, kissing and sharing food prep spaces -- may encourage the exchange of gut microbes," said Dr. Lee.
From Science Daily • Apr. 13, 2026
While worries about the tax prep business’s long-term viability are real, there’s reason to believe investors may be overreacting.
From Barron's • Apr. 6, 2026
Earlier in the afternoon, the final two major prep races for the Kentucky Derby were held at Keeneland and Aqueduct, with each likely producing a pair of starters.
From Los Angeles Times • Apr. 4, 2026
That especially goes for married couples filing jointly, even if one partner typically takes care of all the prep work.
From MarketWatch • Apr. 1, 2026
Half the time he doesn't know whether he's using his CIA crash course in Spanish or his prep school Latin or his college French.
From "How the García Girls Lost Their Accents" by Julia Alvarez
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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.