: 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
For mashed potatoes, gnocchi, and purées A knife or cake tester should slide easily into and out of the potato. Molly Baz, Bon Appetit Magazine, 15 Sep. 2026 The calendar and budget should prove the organization is ready to change before the tester proves what must change. Expert Panel®, Forbes.com, 14 Sep. 2026 Like InStyle testers, Amazon shoppers are raving about this serum. Reece Andavolgyi, InStyle, 10 Sep. 2026 Below are the ones that gave our testers softer, smoother, and shinier strands. Polly Blitzer, Glamour, 9 Sep. 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

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Cite this Entry

“Tester.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tester. Accessed 18 Sep. 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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