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false alarm

 - 3 dictionary results

false alarm

–noun
1. a false report of a fire in progress to a fire department.
2. something that excites unfounded alarm or expectation: Rumors of an impending transit strike proved to be a false alarm.

Origin:
1570–80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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false alarm  
n.  
  1. An emergency alarm, such as a fire alarm, that is set off unnecessarily.

  2. A signal or warning that is groundless.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Idioms & Phrases

false alarm

A warning signal that is groundless, made either by mistake or as a deliberate deception. For example, The rumor that we were all going to get fired was just a false alarm, or Setting off a false alarm is a criminal offense. This expression, first recorded in 1579, today is often used for a report of a nonexistent fire.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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