tester

1 of 3

noun (1)

test·​er ˈte-stər 

: one that tests or is used for testing

tester

2 of 3

noun (2)

tes·​ter ˈtē-stər  ˈte- 

: the canopy over a bed, pulpit, or altar

tester

3 of 3

noun (3)

tes·​ter ˈte-stər 

: teston sense a

Examples of tester in a Sentence

Recent Examples on the Web

Noun

While there are only four shades, our testers say the range is pretty flexible, especially Crystal, the very-light-to-light hue. —Deanna Pai, Allure, 23 Oct. 2025

The likeness detection tool, which is similar to the site’s copyright detection system, has now expanded beyond the initial small group of testers. —ArsTechnica, 21 Oct. 2025

Our tester said that her DreamCloud mattress felt more luxe than the price would suggest, giving it an 8/10 comfort rating. —Nashia Baker, Architectural Digest, 21 Oct. 2025

To find out which ones are actually worth it, Glamour editors, contributors, and a team of in-home testers researched and evaluated more than 10 of the most popular ones, taking notes on everything from heat distribution and comfort to ease of use, cleanup, and portability. —Brigitt Earley, Glamour, 20 Oct. 2025

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

Rhymes for tester

• ester
• esther
• fester
• jester
• nester
• nestor
• pester
• prester
• quaestor
• wester
• yester
• ancestor

Kids Definition

tester

1 of 2 noun

tes·​ter ˈtēs-tər  ˈtes- 

: 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