usage: a message informing of danger; "a warning that still more bombs could explode"
2. admonition, monition, warning, word of advice, advice
usage: cautionary advice about something imminent (especially imminent danger or other unpleasantness); "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"
3. warning, telling, apprisal, notification
usage: notification of something, usually in advance; "they gave little warning of their arrival"; "she had only had four days' warning before leaving Berlin"
1. warn, inform
usage: notify of danger, potential harm, or risk; "The director warned him that he might be fired"; "The doctor warned me about the dangers of smoking"