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[uhn-der-bruhsh] /ˈʌn dərˌbrʌʃ/
shrubs, saplings, low vines, etc., growing under the large trees in a wood or forest.
Also, underbush
[uhn-der-boo sh] /ˈʌn dərˌbʊʃ/ (Show IPA)
Origin of underbrush
An Americanism dating back to 1765-75; under- + brush2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for underbrush
Historical Examples
  • Some of our men were firing their guns at random into the underbrush.

    In the Valley Harold Frederic
  • With difficulty they had saved the chest and dragged it after them into the mazes of the underbrush.

    The Monster Men Edgar Rice Burroughs
  • He saw before him rough ground, thickly sown with underbrush.

    The Rock of Chickamauga Joseph A. Altsheler
  • Gun in hand, he plunged into the underbrush that lined the side of the trail.

    White Fang Jack London
  • He whined pleadingly, and scurried playfully in and out of the underbrush.

    White Fang Jack London
  • The underbrush closed after them and they were hidden from sight.

  • It is found in shady woods and sometimes in open places where there is underbrush.

  • And he caught a last glimpse of her light frock as it vanished into the underbrush.

    The Vagrant Duke George Gibbs
  • And leaving Brierly to turn the car, he started off with Shad Wells into the underbrush.

    The Vagrant Duke George Gibbs
  • He dashed up noisily from the underbrush, swung his arms, and shouted, “Boo!”

    The Boy Settlers

    Noah Brooks
British Dictionary definitions for underbrush


(mainly US & Canadian) undergrowth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for underbrush

"shrub and small trees in a forest," 1775, from under + brush (n.2). Originally American English; cf. undergrowth, attested in the same sense from 1600.

Online Etymology Dictionary, © 2010 Douglas Harper
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