warning

adjective

1
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
2
notification of something, usually in advance
they gave little warning of their arrival
she had only had four days' warning before leaving Berlin
3
a message informing of danger
a warning that still more bombs could explode

Also useful for “warning”:Unscrambler— Rearrange the letters in “warning”