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wake-up call

 - 2 dictionary results
wake-up call   (wāk'ŭp')
n.  
  1. A telephone call that one requests to occur at a specific time in order to be woken up, especially in a hotel.

  2. A sign or warning that alerts one to negative or dangerous behavior or circumstances: "Her personal life was spiraling out of control . . . and her brush with death came as a wake-up call" (Geraldine Fabrikant).

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

wake-up call

A portentous event, report, or situation that brings an issue to immediate attention. For example, The rise in unemployment has given a wake-up call to state governments, or The success of the online subscription is a wake-up call to publishers. This metaphoric term originated in the second half of the 1900s for a telephone call arranged in advance to awaken a sleeper, especially in a hotel. Its figurative use dates from about 1990.

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