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• hay
  hay

  noun

  grass, clover, alfalfa, etc., cut and dried for use as forage.
• Hay
  Hay

  noun

  John Milton, 1838–1905, U.S. statesman and author.

hay

¹ American  

[hey] / heɪ /

noun

1. grass, clover, alfalfa, etc., cut and dried for use as forage.

2. grass mowed or intended for mowing.

3. Slang.

   1. a small sum of money.

      Twenty dollars an hour for doing very little certainly ain't hay.

   2. money.

      A thousand dollars for a day's work is a lot of hay!

4. Slang. marijuana.

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verb (used with object)

1. to convert (plant material) into hay.

2. to furnish (horses, cows, etc.) with hay.

verb (used without object)

1. to cut grass, clover, or the like, and store for use as forage.

idioms

1. make hay of, to scatter in disorder; render ineffectual.

   The destruction of the manuscript made hay of two years of painstaking labor.

2. make hay while the sun shines, to seize an opportunity when it presents itself: Also make hay.

   If you want to be a millionaire, you have to make hay while the sun shines.

3. in the hay, in bed; retired, especially for the night.

   By ten o'clock he's in the hay.

4. hit the hay, to go to bed.

   It got to be past midnight before anyone thought of hitting the hay.

5. a roll in the hay, sexual intercourse.

Hay ² American  

[hey] / heɪ /

noun

1. John Milton, 1838–1905, U.S. statesman and author.

2. a river in NW Canada, flowing NE to the Great Slave Lake. 530 miles (853 km) long.

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hay ¹ British  

/ heɪ /

noun

1. 1. grass, clover, etc, cut and dried as fodder

   2. ( in combination )

      a hayfield

      a hayloft

2. slang to go to bed

3. to throw into confusion

4. to take full advantage of an opportunity

5. informal sexual intercourse or heavy petting

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verb

1. to cut, dry, and store (grass, clover, etc) as fodder

2. (tr) to feed with hay

hay ² British  

/ heɪ /

noun

1. a circular figure in country dancing

2. a former country dance in which the dancers wove in and out of a circle

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Hay ³ British  

/ heɪ /

noun

1. Will. 1888–1949, British music-hall comedian, who later starred in films, such as Oh, Mr Porter! (1937)

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hay More Idioms  

1. see hit the hay; make hay while the sun shines; roll in the hay; that ain't hay.

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Other Word Forms

• hayey
  adjective
• unhayed
  adjective

Etymology

Origin of hay

before 900; Middle English; Old English hēg; cognate with German Heu, Old Norse hey, Gothic hawi. See hew

Explanation

Hay is a type of dried grass that's fed to certain farm animals. You might buy bags of hay to feed your pet rabbit, who likes to nibble on it. Hay is a mixture of grassy plants grown in fields, cut or mown, bundled in bales, and stored until ready to be fed to livestock. Hay and straw aren't the same thing; hay is cut when it's green, while straw is made up of the leftover dried stems and leaves of plants that have been harvested. And while some animals feed on straw too, hay is more nutritious. The Old English root is heg, "grass cut or mown."

Example Sentences

Ridglan was ready: Hay bales fortified the fence, and a freshly dug ditch—a foul moat—brimmed with animal waste.

From The Wall Street Journal • May 7, 2026

By analysing verified footage, social media posts and satellite imagery and comparing these with eyewitness accounts, we have identified at least five strikes that hit Hay el Sellom in quick succession.

From BBC • May 5, 2026

Hay fever sufferers must now put up with symptoms for up to two weeks longer than they would have done in the 1990s, according to a major review.

From BBC • Apr. 22, 2026

Hay Fever is one of Coward's most enduring comedies, and follows the self-centred Bliss family - retired actress Judith, her novelist husband David, and their children Sorel and Simon.

From BBC • Apr. 16, 2026

Latin and algebra were necessary for high school, so she had her daughters tutored by Archdeacon Hay.

From "Outliers" by Malcolm Gladwell

Related Words

• fodder
• grass