timer
Americannoun
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a person or thing that times.
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a person who measures or records time.
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a device for indicating or measuring elapsed time, as a stopwatch.
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a device for controlling machinery, appliances, or the like, in a specified way at a predetermined time.
Please put the roast in the oven and set the timer to cook it for two hours.
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(in an internal-combustion engine) a set of points actuated by a cam, which causes the spark for igniting the charge at the instant required.
noun
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a device for measuring, recording, or indicating time
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a switch or regulator that causes a mechanism to operate at a specific time or at predetermined intervals
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a person or thing that times
Other Word Forms
Noun Inflected Forms
Etymology
Origin of timer
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.
The timer could include a message that says, “You’ve got five minutes to complete this sale,” or “Enter your credit card now or the price will go up,” Moore said.
From Los Angeles Times • Jun. 11, 2026
Again, the egg timer really works only in a single direction.
From Slate • May 5, 2026
"I started doing it on my granny's kitchen floor and begged my mum for a timer mat and cup," Ivy said.
From BBC • Apr. 11, 2026
Using a simple remote control, you cycle through six heat levels and can set a timer in one-hour increments.
From The Wall Street Journal • Jan. 23, 2026
I show Zayd where to press the timer.
From "Zara’s Rules for Record-Breaking Fun" by Hena Khan
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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.