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all clear

the signal that an air raid or other danger is over.
Origin of all clear
First recorded in 1915-20 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for all-clear
Contemporary Examples
Historical Examples
  • He remembered that Webster had promised to come and knock an all-clear signal on the door.

    The Girl on the Boat Pelham Grenville Wodehouse
  • "Think o' when the all-clear bugle sounds in Fulham," responded Bindle.

    Adventures of Bindle Herbert George Jenkins
  • The bugles sounded all-clear in many keys all round the ear's horizon; their sound matched the waning moonlight.

    Living Alone Stella Benson
  • When the all-clear signal sounded inside the Shed, nobody paid any attention.

    Space Platform Murray Leinster
British Dictionary definitions for all-clear

all clear

a signal, usually a siren, indicating that some danger, such as an air raid, is over
an indication that obstacles are no longer present; permission to proceed: he received the all clear on the plan
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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Slang definitions & phrases for all-clear


adverb phrase

Denoting authorization to proceed with something; a signal that there is no further danger (1930s+)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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