verb (used with object)

verb (used without object)

Origin of test

1350–1400; Middle English: cupel < Middle French < Latin testū, testum earthen pot; akin to test2
Related formstest·a·ble, adjectivetest·a·bil·i·ty, nountest·ing·ly, adverbnon·test·a·ble, adjectivenon·test·ing, adjectiveself-test·ing, adjectiveun·test·a·ble, adjectiveun·test·ed, adjectivewell-test·ed, adjective

Synonyms for test

Synonym study

1. See trial.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for testing

Contemporary Examples of testing

Historical Examples of testing

  • I am speaking for the moment only of the degree to which the testing comes.

  • Each workshop and testing room is devoted to a particular purpose.

  • "We've wasted weeks testing every man on this field," said Dr. Shalt solemnly.

  • It's the devil and all that I never thought of testing it myself in wet weather.

    The Great Hunger

    Johan Bojer

  • Two Arrows did not know that he was testing his quality as a warrior and chief to be.

    Two Arrows

    William O. Stoddard

British Dictionary definitions for testing




to ascertain (the worth, capability, or endurance) of (a person or thing) by subjection to certain examinations; try
(often foll by for) to carry out an examination on (a substance, material, or system) by applying some chemical or physical procedure designed to indicate the presence of a substance or the possession of a propertyto test food for arsenic; to test for magnetization
(intr) to achieve a specified result in a testa quarter of the patients at the clinic tested positive for the AIDS virus
(tr) to put under severe strainthe long delay tested my patience
test the water to make an exploratory or initial approach; sound out


a method, practice, or examination designed to test a person or thing
a series of questions or problems designed to test a specific skill or knowledgean intelligence test
a standard of judgment; criterion
  1. a chemical reaction or physical procedure for testing a substance, material, etc
  2. a chemical reagent used in such a procedurelitmus is a test for acids
  3. the result of the procedure or the evidence gained from itthe test for alcohol was positive
sport See test match
archaic a declaration or confirmation of truth, loyalty, etc; oath
(modifier) performed as a testtest drive; test flight
Derived Formstestable, adjectivetestability, nountesting, adjective

Word Origin for test

C14 (in the sense: vessel used in treating metals): from Latin testum earthen vessel




the hard or tough outer covering of certain invertebrates and tunicates
a variant of testa

Word Origin for test

C19: from Latin testa shell
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

Word Origin and History for testing



late 14c., "small vessel used in assaying precious metals," from Old French test, from Latin testum "earthen pot," related to testa "piece of burned clay, earthen pot, shell" (cf. Latin testudo "tortoise") and texere "to weave" (cf. Lithuanian tistas "vessel made of willow twigs;" see texture (n.)).

Sense of "trial or examination to determine the correctness of something" is recorded from 1590s. The connecting notion is "ascertaining the quality of a metal by melting it in a pot." Test Act was the name given to various laws in English history meant to exclude Catholics and Nonconformists from office, especially that of 1673, repealed 1828. Test drive (v.) is first recorded 1954.



1748, "to examine the correctness of," from test (n.). Related: Tested; testing.

Online Etymology Dictionary, © 2010 Douglas Harper

testing in Medicine




A procedure for critical evaluation; a means of determining the presence, quality, or truth of something; an examination, or experiment.
A physical or chemical change by which a substance may be detected or its properties ascertained.
A reagent used to cause or promote such a change.


To subject to a test; try.
To determine the presence or properties of a substance.
To administer a test.
To exhibit a given characteristic when subjected to a test.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Idioms and Phrases with testing


see acid test; put to the test.

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