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See more synonyms for bosh on Thesaurus.com
  1. absurd or foolish talk; nonsense.
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Origin of bosh1

1830–35; < Turkish boş empty; popularized from its use in the novel Ayesha (1834) by British author James J. Morier (1780–1849)


noun Metallurgy.
  1. the section of a blast furnace between the hearth and the stack, having the form of a frustum of an inverted cone.
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Origin of bosh2

1670–80; probably < German; akin to German böschen to slope, Böschung slope, scarp
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for bosh

Contemporary Examples

Historical Examples

  • "What a lot of bosh is talked about lovers," his comment ran.


    Mr. and Mrs. Haldeman-Julius

  • This stupendous mass of bosh could not have been produced unless there were a demand for it.

    The Curse of Education

    Harold E. Gorst

  • That talk about me trying to get you out of Illington, Blaine, is all bosh, and you know it.

    The Crevice

    William John Burns and Isabel Ostrander

  • How even such a banquet of bosh was got ready in the time remained a riddle.

  • If my reader finds this bosh and abracadabra, all right for him.

British Dictionary definitions for bosh


  1. informal empty or meaningless talk or opinions; nonsense
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Word Origin

C19: from Turkish boş empty


  1. the lower tapering portion of a blast furnace, situated immediately above the air-inlet tuyères
  2. the deposit of siliceous material that occurs on the surfaces of vessels in which copper is refined
  3. a water tank for cooling glass-making tools, etc
  4. South Wales dialect a kitchen sink or wash basin
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Word Origin

C17: probably from German; compare böschen to slope, Böschung slope
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

Word Origin and History for bosh


"empty talk, nonsense," 1834, from Turkish, literally "empty." Introduced in "Ayesha," popular romance novel by J.J. Morier (1780-1849).

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Online Etymology Dictionary, © 2010 Douglas Harper