What is the meaning of warning?

noun

• A message informing of danger.
  • usage: "a warning that still more bombs could explode"
• Cautionary advice about something imminent (especially imminent danger or other unpleasantness. )
  • usage: "a letter of admonition about the dangers of immorality"; "the warning was to beware of surprises"; "his final word of advice was not to play with matches"
  • synonyms: admonition, monition, word of advice
• Notification of something, usually in advance.
  • usage: "they gave little warning of their arrival"; "she had only had four days' warning before leaving Berlin"

verb

• Notify of danger, potential harm, or risk.
  • usage: "The director warned him that he might be fired"; "The doctor warned me about the dangers of smoking"
  • synonyms: warn
• Admonish or counsel in terms of someone's behavior.
  • usage: "I warned him not to go too far"; "I warn you against false assumptions"; "She warned him to be quiet"
  • synonyms: warn, discourage, admonish, monish
• Ask to go away.
  • usage: "The old man warned the children off his property"
  • synonyms: warn
• Notify, usually in advance.
  • usage: "I warned you that I would ask some difficult questions"
  • synonyms: warn

adjective

• Serving to warn.
  • usage: "shook a monitory finger at him"; "an exemplary jail sentence"
  • synonyms: admonitory, cautionary, exemplary, monitory