tester
1 Americannoun
noun
noun
noun
noun
noun
Etymology
Origin of tester1
First recorded in 1655–65; test 1 + -er 1
Origin of tester2
First recorded in 1350–1400; Middle English tester, testo(u)r, testir, teester “headpiece,” from Old French testiere “headpiece, head covering,” from Medieval Latin testerium, testrum, testura “canopy of a bed”; derivative of Vulgar Latin testa “head,” from Latin testa “earthenware jar; brick; tile”; test 2
Origin of tester3
First recorded in 1560–70; earlier testorn, variant of teston, with -r- from Middle French testart “teston”
Explanation
When someone is a tester, they either administer tests or they assess the safety or function of a product. You might hope for an eventual career as a bubblegum tester. When you take a standardized exam, a tester will hand out papers and collect them when your time is up. And when you get a driver's license, a tester will ride along with you in the car during your road test. There's another type of tester that's a free sample, like a lipstick tester you can try on in a store. And an old-fashioned tester is the fabric canopy on the top of a four-poster bed.
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.
Another tester appreciated how easy it was to eat.
From Barron's • Feb. 24, 2026
Gifted with every upsell in Hyundai’s ample larder, our Calligraphy AWD tester carried 364 pounds of extra luxury around its midsection, compared to the FWD model.
From The Wall Street Journal • Jan. 8, 2026
"You don't think of it being in a perfume tester bottle. We didn't know what we were looking for."
From BBC • Oct. 27, 2024
In January, a tester inquired about a $2,700-a-month, two-bedroom condo for rent in Koreatown.
From Los Angeles Times • Oct. 8, 2024
Once, I went to a department store and used every single tester perfume on the counter, but it was still there.
From "I'll Give You the Sun" by Jandy Nelson
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.
