: one that tests or is used for testing
: the canopy over a bed, pulpit, or altar

Examples of tester in a Sentence

Recent Examples on the Web
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Noun
Our testers spend less time on checklist work now and more time on the odd edge cases and business logic that actually need a human brain behind them. Karan Sharma, Forbes.com, 21 Aug. 2026 Its multitasking ability and powerful effectiveness earned top marks from Glamour testers. Mary Honkus, Glamour, 18 Aug. 2026 In the video, testers are seated in a ride vehicle attached to a robotic arm that swings around nearly 360 degrees in the air. Colson Thayer, PEOPLE, 16 Aug. 2026 My tester was equipped with a new physical engine start button. Jerry Perez, The Drive, 6 Aug. 2026 See All Example Sentences for tester

Word History

Etymology

Noun (2)

Middle English, headboard of a bed, canopy, from Anglo-French, from teste head, from Late Latin testa skull, from Latin, shell

Noun (3)

modification of Middle French testart, from teston

First Known Use

Noun (1)

1661, in the meaning defined above

Noun (2)

14th century, in the meaning defined above

Noun (3)

1546, in the meaning defined above

Time Traveler
The first known use of tester was in the 14th century

Browse Nearby Words

Cite this Entry

“Tester.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tester. Accessed 29 Aug. 2026.

Kids Definition

: a canopy or a frame for a canopy over a bed, pulpit, or altar

tester

2 of 2 noun
test·​er
ˈtes-tər
: one that tests

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