caution: Meaning and Definition of

cau•tion

1. alertness and prudence in a hazardous situation; care; wariness: Landslides ahead—proceed with caution.
2. a warning against danger or evil; anything serving as a warning: By way of caution, he told me the difficulties I would face.
3. a person or thing that astonishes or causes mild apprehension: She's a caution. The way he challenges your remarks is a caution.

1. to give warning to; advise or urge to take heed.

1. to warn or advise: The newspapers caution against overoptimism.