Warning

Part of speech: noun (n.)

1. Previous notice. "At a month's warning." Dryden. A great journey to take upon so short a warning. L'Estrange.

2. Caution against danger, or against faults or evil practices which incur danger; admonition; monition. Could warning make the world more just or wise. Dryden.

Part of speech: adjective (a.)

Giving previous notice; cautioning; admonishing; as, a warning voice. That warning timepiece never ceased. Longfellow. Warning piece, Warning wheel (Horol.), a piece or wheel which produces a sound shortly before the clock strikes.