tester

1 of 4

noun (1)

test·​er ˈte-stər 

: one that tests or is used for testing

tester

2 of 4

noun (2)

tes·​ter ˈtē-stər  ˈte- 

: the canopy over a bed, pulpit, or altar

tester

3 of 4

noun (3)

tes·​ter ˈte-stər 

: teston sense a

teston

4 of 4

noun (4)

tes·​ton ˈte-ˌstän 

variants or testoon

te-ˈstün 

or less commonly tester

ˈte-stər 

: any of several old European coins: such as

a

: a shilling of Henry VIII of England decreasing in value to ninepence and then to sixpence in Shakespeare's time

b

: a French silver coin of the 16th century worth between 10 and 14½ sous

Examples of tester in a Sentence

Recent Examples on the Web

Noun

Every question that each tester asks is something the platform should answer on its own. — Expert Panel®, Forbes.com, 2 Oct. 2026

Our taste testers universally agreed this was the most party-ready jar of the bunch. — Sarah Martens, Better Homes & Gardens, 1 Oct. 2026

Zesta Saltine Crackers Zesta’s Saltine Crackers was not a favorite of testers, putting it near the bottom of the list. — Jenna Sims, Southern Living, 28 Sep. 2026

Soon after, Anthropic revealed that its own stress testers attacked three companies too. — Steven Zeitchik, HollywoodReporter, 25 Sep. 2026

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

Noun (4)

Middle French, from Old Italian testone, augmentative of testa head, from Late Latin, skull — more at tester entry 2

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

Noun (4)

1536, 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