[gras, grahs] /græs, grɑs/
any plant of the family Gramineae, having jointed stems, sheathing leaves, and seedlike grains.
Compare grass family.
such plants collectively, as when cultivated in lawns or used as pasture for grazing animals or cut and dried as hay.
the grass-covered ground.
"Half the farm is grass."
Slang. marijuana.
grasses, stalks or sprays of grass:
"filled with dried grasses."
the season of the new growth of grass.
verb (used with object)
to cover with grass or turf.
to feed with growing grass; pasture.
to lay (something) on the grass, as for the purpose of bleaching.
verb (used without object)
to feed on growing grass; graze.
to produce grass; become covered with grass.
go to grass, to retire from one's occupation or profession:
"Many executives lack a sense of purpose after they have gone to grass."
let the grass grow under one's feet, to delay action, progress, etc.; become slack in one's efforts.
before 900; Middle English gras, Old English græs; cognate with Dutch, German, Old Norse, Gothic gras; akin to grow, green
Related forms
grassless, adjective
grasslike, adjective
grassward, grasswards, adverb, adjective
undergrass, noun
ungrassed, adjective
British Dictionary definitions for undergrass
grass (ɡrɑːs)
1.  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
2.  such plants collectively, in a lawn, meadow, etcRelated: gramineous, verdant
3.  any similar plant, such as knotgrass, deergrass, or scurvy grass
4.  ground on which such plants grow; a lawn, field, etc
5.  ground on which animals are grazed; pasture
6.  a slang word for marijuana
7.  slang (Brit) a person who informs, esp on criminals
8.  short for sparrowgrass
9.  informal (NZ) get off the grass an exclamation of disbelief
10.  let the grass grow under one's feet to squander time or opportunity
11.  put out to grass
 a.  to retire (a racehorse)
 b.  informal to retire (a person)
vb (usually foll by on)
12.  to cover or become covered with grass
13.  to feed or be fed with grass
14.  (tr) to spread (cloth) out on grass for drying or bleaching in the sun
15.  (tr) sport to knock or bring down (an opponent)
16.  (tr) to shoot down (a bird)
17.  (tr) to land (a fish) on a river bank
18.  slang (Brit) to inform, esp to the police
Related: gramineous, verdant
[Old English græs; related to Old Norse, Gothic, Old High German gras, Middle High German gruose sap]

Grass (German ɡras)
Günter (Wilhelm) (ˈɡyntər). born 1927, German novelist, dramatist, and poet. His novels include The Tin Drum (1959), Dog Years (1963), The Rat (1986), Crabwalk (2002), and Peeling the Onion (2007). Nobel prize for literature 1999

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin and History for undergrass
O.E. græs, gærs "herb, plant, grass," from P.Gmc. grasan (cf. O.N., Ger., Goth. gras), from PIE *ghros- "young shoot, sprout," from base *gro-/*gre- "that which grows" (cf. L. gramen "grass"); related to grow and green. Sense of "marijuana" is first recorded 1938, Amer.Eng. Grasshopper is O.E. gærshoppa (cf. M.Swed. gräshoppare, Ger. Grashüpfer); as a term of reproach, from Eccl. xii.5. Grass widow (1528) was originally "discarded mistress" (cf. Ger. Strohwitwe, lit. "straw-widow"), probably in allusion to casual bedding. Sense of "married woman whose husband is absent" is from 1846.
"[G]rasse wydowes ... be yet as seuerall as a barbours chayre and neuer take but one at onys." [More, 1528]
Online Etymology Dictionary, © 2010 Douglas Harper
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undergrass in Science
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. See more at leaf.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang related to undergrass


  1. The straight hair typical of Caucasians (1950s+ Black)
  2. (also grass weed) Marijuana; pot : smoking a little grass and passing on venereal disease/ Scoring grass here is easier than buying a loaf of bread (1930s+ Narcotics)

one's ass is grass

Dictionary of American Slang
Copyright © 1986 by HarperCollins Publishers
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Related Abbreviations for undergrass


Geographic Resources Analysis Support System
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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undergrass in the Bible

(1.) Heb. hatsir, ripe grass fit for mowing (1 Kings 18:5; Job 40:15; Ps. 104:14). As the herbage rapidly fades under the scorching sun, it is used as an image of the brevity of human life (Isa. 40:6, 7; Ps. 90:5). In Num. 11:5 this word is rendered "leeks." (2.) Heb. deshe', green grass (Gen. 1:11, 12; Isa. 66:14; Deut. 32:2). "The sickly and forced blades of grass which spring up on the flat plastered roofs of houses in the East are used as an emblem of speedy destruction, because they are small and weak, and because, under the scorching rays of the sun, they soon wither away" (2 Kings 19:26; Ps. 129:6; Isa. 37:27). The dry stalks of grass were often used as fuel for the oven (Matt. 6:30; 13:30; Luke 12:28).

Easton's 1897 Bible Dictionary
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Tile value for undergrass

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