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

In fact, Kojima reportedly altered the sequel’s plot because early testers liked the game too much, according to French musician Woodkid, who composed its soundtrack. —Will Ripley, CNN Money, 12 Dec. 2025

These testers included legal AI startup Harvey, note-taking app Notion, and file-management software company Box, as well as Shopify and Zoom. —Jeremy Kahn, Fortune, 11 Dec. 2025

Our best overall pick, Davines Oi Shampoo, impressed testers with its conditioning feel, rich lather, and ability to soften and smooth without heaviness. —Jennifer Hussein, Glamour, 11 Dec. 2025

Each tester spends at least a month on the new mattress—coming in over 2,500 hours with an eight-hour sleep schedule in mind for all of the picks in this story—taking notes and catching z’s. —Kristi Kellogg, Architectural Digest, 10 Dec. 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