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washout

American  
[wosh-out, wawsh-] / ˈwɒʃˌaʊt, ˈwɔʃ- /

noun

  1. a washing out of earth, gravel, etc., by water, as from an embankment or a roadway by heavy rain or by a flash flood.

  2. the hole, break, or erosion produced by such a washing out.

  3. Aeronautics. Also wash-out a warp in an airfoil that gives a decrease in the angle of attack toward the tip.

  4. rainout.

  5. Informal. an utter failure.

  6. Informal. a person who has failed a course of training or study.

    air force washouts.


Etymology

Origin of washout

First recorded in 1870–75; noun use of verb phrase wash out

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.

Each participant completed two separate 28-day diet periods with a 28-day washout period in between.

From Science Daily • May 22, 2026

Both bitcoin and ether have stabilized since Saturday’s sudden washout.

From The Wall Street Journal • Feb. 3, 2026

The stock market is likely “closer to the bottom,” after Thursday’s washout, and investors should buy the dip, says Wall Street’s prescient and biggest bull, Tom Lee.

From MarketWatch • Nov. 21, 2025

Seven-time champions Australia won six of their seven league matches to underline why they are the team to beat in the 50-over tournament, the other game being a washout.

From Barron's • Oct. 28, 2025

Mr. Benson struck the washout a little way above us.

From "Where the Red Fern Grows" by Wilson Rawls

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