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Noun: wake-up call
  1. A telephone call that you request be made at a specific time in order to wake you up
    "she left a wake-up call for 7 a.m"
     
  2. A warning to take action concerning something that was overlooked or neglected
    "the bombing was a wake-up call to strengthen domestic security"

Derived forms: wake-up calls

Type of: call, phone call, telephone call, warning

Encyclopedia: Wake-up call