Main Entry: ¹warn·ing

Pronunciation: \ˈwȯr-niŋ\

Function: noun

Date: before 12th century

1 : the act of warning : the state of being warned <he had warning of his illness>
2 : something that warns or serves to warn; especially : a notice or bulletin that alerts the public to an imminent hazard (as a tornado, thunderstorm, or flood)