[ shuht-doun ]
/ ˈʃʌtˌdaʊn /


a shutting down, as of a factory, school, or machine; a termination or suspension of operations, services, or business activity: a partial government shutdown; an emergency shutdown of a nuclear reactor.

Origin of shutdown

1855–60, Americanism; noun use of verb phrase shut down Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for shutdown

British Dictionary definitions for shutdown


/ (ˈʃʌtˌdaʊn) /


  1. the closing of a factory, shop, etc
  2. (as modifier)shutdown costs

verb shut down (adverb)

to cease or cause to cease operation
(tr) to close by lowering
(tr) (of fog) to descend and envelop
(intr; foll by on or upon) informal to put a stop to; clamp down on
(tr) to reduce the power level of (a nuclear reactor) to the lowest possible value
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