: 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
My tester was equipped with a new physical engine start button. Jerry Perez, The Drive, 6 Aug. 2026 These models are currently limited to a small group of testers. Ryan Whitwam, ArsTechnica, 30 July 2026 When the first iOS 27 developer beta arrived, testers found that Spotlight indexing could take quite a while—up to a week or longer. David Phelan, Forbes.com, 29 July 2026 Our 43-year-old, 32D tester appreciated the bra’s soft yet structured cups, which provided support and a flattering silhouette while remaining comfortable. Jenny Berg, InStyle, 29 July 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 9 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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