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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

Tracye also has a vivid memory of sitting on a bale of hay to watch her mother belly dance at Pleasure Faire.

From Los Angeles Times • May 7, 2026

Baling hay and shoveling corn paid $1.25 per hour, and was also done in full sun.

From The Wall Street Journal • May 7, 2026

She reported Golden Tempo, munching on some hay in his stall maybe 50 feet behind her, was doing well, two hours before he took a 70-mile van ride to DeVaux’s base at Keeneland.

From Los Angeles Times • May 3, 2026

Tree pollen affects 25-35% of hay fever sufferers and typically runs from March to early June for most trees.

From BBC • Apr. 8, 2026

Then he spat a piece of hay out of his mouth and looked around.

From "The Interrupted Tale" by Maryrose Wood

Related Words

• fodder
• grass