Dictionary.com
Thesaurus.com
Showing results for tester. Search instead for testier.
Synonyms

tester

1 American  
[tes-ter] / ˈtɛs tər /

noun

  1. a person or thing that tests.

tester 2 American  
[tes-ter, tees-] / ˈtɛs tər, ˈtis- /

noun

  1. a canopy, as over a bed or altar.

tester 3 American  
[tes-ter] / ˈtɛs tər /

noun

  1. the teston of Henry VIII.

tester 1 British  
/ ˈtɛstə /

noun

  1. a person or thing that tests or is used for testing

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
tester 2 British  
/ ˈtɛstə /

noun

  1. (in furniture) a canopy, esp the canopy over a four-poster bed

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
tester 3 British  
/ ˈtɛstə /

noun

  1. another name for teston

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of tester1

First recorded in 1655–65; test 1 + -er 1

Origin of tester2

First recorded in 1350–1400; Middle English tester, testo(u)r, testir, teester “headpiece,” from Old French testiere “headpiece, head covering,” from Medieval Latin testerium, testrum, testura “canopy of a bed”; derivative of Vulgar Latin testa “head,” from Latin testa “earthenware jar; brick; tile”; test 2

Origin of tester3

First recorded in 1560–70; earlier testorn, variant of teston, with -r- from Middle French testart “teston”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Another tester appreciated how easy it was to eat.

From Barron's • Feb. 24, 2026

Gifted with every upsell in Hyundai’s ample larder, our Calligraphy AWD tester carried 364 pounds of extra luxury around its midsection, compared to the FWD model.

From The Wall Street Journal • Jan. 8, 2026

She added: "Child safety must come first, so we're urging parents – please don't let your child be the tester."

From BBC • Sep. 24, 2025

The discovery was made through the aid of a third-party forensic tester and a federal grant.

From Los Angeles Times • May 10, 2025

Burt the tester brot me some flowers he said they were from the pepul at the psych departmint.

From "Flowers for Algernon" by Daniel Keyes

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.