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wake–up call

noun

Simple Definition of wake–up call

  • : a telephone call that a hotel makes to your room to wake you up

  • : something that makes you fully understand a problem, danger, or need

Source: Merriam-Webster's Learner's Dictionary

Full Definition of wake–up call

  1. 1 :  something (as a telephone call from a hotel employee to a guest) that serves to wake a sleeper

  2. 2 :  something that serves to alert a person to a problem, danger, or need <a wake-up call to parents>


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