1 of 3

noun (1)

test·​er ˈte-stər How to pronounce tester (audio)
: one that tests or is used for testing


2 of 3

noun (2)

tes·​ter ˈtē-stər How to pronounce tester (audio)
: the canopy over a bed, pulpit, or altar


3 of 3

noun (3)

tes·​ter ˈte-stər How to pronounce tester (audio)

Examples of tester in a Sentence

Recent Examples on the Web
Overall Results: Our testers described how their face and skin looked and felt after using the tool consistently. Sophie Dodd, Peoplemag, 22 Feb. 2024 These tests were completed by two different testers for each air purifier, with one person operating the air purifier on the lowest setting and the other operating it on the highest setting. Kelsey Kunik, Parents, 15 Feb. 2024 The testers found an average of 2,663 trackers per minute of usage, with one using more than 24,000 trackers per minute. Barry Collins, Forbes, 14 Feb. 2024 About That Dutch Oven These three Dutch ovens are beloved by our product testers, test kitchen pros, and industry vets. Inés Anguiano, Bon Appétit, 13 Feb. 2024 Maggie is also a professional gear tester, testing hundreds of items on the trail each year, from hiking shoes to headphones to protein bars. Maggie Slepian, Travel + Leisure, 9 Feb. 2024 In the Navy, the high testers are destined for the nuclear program, cryptology, air-traffic control, and similarly brainy endeavors — but with mental horsepower can come personality quirks and socialization oddities that can be targeted with medication. Luther Ray Abel, National Review, 9 Feb. 2024 The Cheesecake Factory has an official taste tester for every dish on that hefty menu. Anthony De Leon, Los Angeles Times, 8 Feb. 2024 Our team of testers put dozens of sculpting shapewear styles through six weeks of real-world testing and named the Bali Lace ‘N Smooth Firm-Control Body Shaper as the best lace option. Averi Baudler, Peoplemag, 8 Feb. 2024 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tester.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


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

Dictionary Entries Near tester

Cite this Entry

“Tester.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tester. Accessed 2 Mar. 2024.

Kids Definition


1 of 2 noun
tes·​ter ˈtēs-tər How to pronounce tester (audio) ˈtes- How to pronounce tester (audio)
: a canopy or a frame for a canopy over a bed, pulpit, or altar


2 of 2 noun
: one that tests

More from Merriam-Webster on tester

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