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• test run
  test run

  noun

  an act of trying out a process, piece of equipment, program, etc., to see if it works properly.
• test-run
  test-run

  verb (used with object)

  to try out (a process, pieces of equipment, etc.) to see if it works; do a test run on.

test run

¹ American  

[test ruhn] / ˈtɛst ˌrʌn /

noun

• test runs
  plural

1. an act of trying out a process, piece of equipment, program, etc., to see if it works properly.

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test-run ² American  

[test ruhn] / ˈtɛst ˌrʌn /

verb (used with object)

test-ran, test-running

1. to try out (a process, pieces of equipment, etc.) to see if it works; do a test run on.

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verb (used without object)

test-ran, test-running

1. to undergo a test run or perform in a specified way in a test run.

Other Word Forms

Derived Forms

• test-runner
  noun

Inflected Forms

Nouns

• test runs
  plural

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Example Sentences

See Examples For:

test run test-run

The impossible-to-ignore implication was that it was a test run, but Patterson felt that costumed friend walked too much like a human so he recast the role.

From Los Angeles Times ● Oct. 20, 2026

It is thought this was a test run for something significantly bigger.

From BBC ● Sep. 4, 2026

The framework has provisions for a test run of sorts, with Israeli troops withdrawing from two pilot zones where the Lebanese army will gradually assume security responsibilities.

From Los Angeles Times ● Jun. 30, 2026

In a test run that excluded magnetic fields entirely, the protostars moved farther apart instead of closer together.

From Science Daily ● Jun. 5, 2026

Without anyone giving it a test run ahead of time?

From "The First State of Being" by Erin Entrada Kelly

The test-run footage “is the work of a director with a vision,” says “Capturing Bigfoot” director Marq Evans.

From The Wall Street Journal ● Mar. 12, 2026

It will make Stone’s start on Wednesday part-audition, but also part test-run, in case he’s needed again in the near future because of a potential injury.

From Los Angeles Times ● May 3, 2023

Mr. Mayorkas said officials have had a test-run of that policy since early January, when they announced a program to “parole” migrants from Venezuela, Haiti, Cuba and Nicaragua.

From Washington Times ● Apr. 18, 2023

But China has test-run a different technology that will be deployed at the Games: armpit thermometers that stick like Band-Aids and transmit the person’s temperature.

From New York Times ● Aug. 9, 2021

A quick test-run showed that the antibody was also being regenerated.

From Star Surgeon by Alan Edward Nourse

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