Synonyms for Wake-up call:

• n.

  •cautionary tale (noun)
  • hint,
  • sign of things to come,
  • omen,
  • message,
  • red flag,
  • forewarning,
  • moral,
  • word to the wise,
  • caveat,
  • admonition.
  •communication (noun)
  • wake-up call.
  •Other relevant words: (noun)
  • event illustrating a hazard,
  • a few words of wisdom,
  • lessons,
  • phone call,
  • deterrent example,
  • enough said,
  • messages,
  • advisories,
  • cautionary tale,
  • wake-up calls,
  • lesson,
  • caution light,
  • word to wise,
  • warning,
  • call,
  • telephone call,
  • portent.

• Other synonyms:

  •
  • notice,
  • code red,
  • advisory,
  • alert,
  • early warning,
  • alarm bells,
  • do's and don'ts.
  •
  • housekeeping,
  • room service,
  • hospitality tray,
  • minibar,
  • order up,
  • hotel,
  • full board,
  • room and board,
  • board,
  • bed-and-breakfast.
  •Other relevant words:
  • emergency cord,
  • communication cord,
  • tip off,
  • bomb scare.
  •Other relevant words (noun):
  • alarm.

Antonyms for Wake-up call:

• n.

  • Other antonyms:
    all clear.

Hyponym for Wake-up call:

• n.

  • communication
    telephone call, warning, call, phone call.