grass
1 Americannoun
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any plant of the family Gramineae, having jointed stems, sheathing leaves, and seedlike grains.
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such plants collectively, as when cultivated in lawns or used as pasture for grazing animals or cut and dried as hay.
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the grass-covered ground.
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pasture.
Half the farm is grass.
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Slang. marijuana.
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grasses, stalks or sprays of grass.
filled with dried grasses.
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the season of the new growth of grass.
verb (used with object)
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to cover with grass or turf.
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to feed with growing grass; pasture.
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to lay (something) on the grass, as for the purpose of bleaching.
verb (used without object)
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to feed on growing grass; graze.
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to produce grass; become covered with grass.
idioms
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go to grass, to retire from one's occupation or profession.
Many executives lack a sense of purpose after they have gone to grass.
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let the grass grow under one's feet, to delay action, progress, etc.; become slack in one's efforts.
noun
noun
noun
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any monocotyledonous plant of the family Poaceae (formerly Gramineae ), having jointed stems sheathed by long narrow leaves, flowers in spikes, and seedlike fruits. The family includes cereals, bamboo, etc
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such plants collectively, in a lawn, meadow, etc
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any similar plant, such as knotgrass, deergrass, or scurvy grass
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ground on which such plants grow; a lawn, field, etc
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ground on which animals are grazed; pasture
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a slang word for marijuana
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slang a person who informs, esp on criminals
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short for sparrowgrass
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informal an exclamation of disbelief
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to squander time or opportunity
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to retire (a racehorse)
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informal to retire (a person)
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verb
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to cover or become covered with grass
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to feed or be fed with grass
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(tr) to spread (cloth) out on grass for drying or bleaching in the sun
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(tr) sport to knock or bring down (an opponent)
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(tr) to shoot down (a bird)
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(tr) to land (a fish) on a river bank
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slang to inform, esp to the police
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Any of a large family (Gramineae or Poaceae) of monocotyledonous plants having narrow leaves, hollow stems, and clusters of very small, usually wind-pollinated flowers. Grasses include many varieties of plants grown for food, fodder, and ground cover. Wheat, maize, sugar cane, and bamboo are grasses.
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See more at leaf
Other Word Forms
Derived Forms
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undergrassnoun
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grasslessadjective
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grasslikeadjective
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ungrassedadjective
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grasswardadverb
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grasswardsadverb
Inflected Forms
Nouns
Etymology
Origin of grass
before 900; Middle English gras, Old English græs; cognate with Dutch, German, Old Norse, Gothic gras; akin to grow, green
Explanation
That short green stuff all over the front lawn is grass. What could be better than lying in the grass on a summer afternoon, gazing up at puffy clouds in a blue sky? The word grass goes back to a root that means "green." You're probably familiar with the grass in back yards and city parks. There's also the grass that covers pastures, meant for cows and sheep to graze on, and the grass of grasslands, growing wild on every continent except Antarctica. If you express envy, you may hear the phrase, "The grass is always greener on the other side." In other words, somehow other people's lives always seem better.
Vocabulary lists containing grass
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.
Gauff, 22, has won Grand Slam titles on the US Open hard courts in 2023 and the French Open clay in 2025 - but has never found the same level of confidence on grass.
From BBC • Jul. 9, 2026
While she said she was optimistic of transferring her clay form to the grass, she had also not won on the surface for two years going into this year's championships.
From BBC • Jul. 9, 2026
Ventura police officers involved in an e-bike sting operation at Ventura Community Park on June 10 attempted to stop the juvenile riding his e-motorcycle on the park grass, according to authorities.
From Los Angeles Times • Jul. 8, 2026
The matchup of players who have found their form on grass should showcase Gauff’s counterpunching and defensive skills against Muchova’s clever use of the court’s geometry.
From Los Angeles Times • Jul. 8, 2026
He glanced across the yard at poor Biddy pecking on something, at Muc trying to find a blade of grass to ease her hunger.
From "Nory Ryan’s Song" by Patricia Reilly Giff
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.