| Noun | 1. | caution - the trait of being cautious; being attentive to possible danger; "a man of caution"attentiveness - the trait of being observant and paying attention | |
| 2. | caution - a warning against certain acts; "a caveat against unfair practices"warning - a message informing of danger | |
| 3. | caution - judiciousness in avoiding harm or danger; "he exercised caution in opening the door"; "he handled the vase with care" | |
| 4. | caution - the trait of being circumspect and prudentprecaution - the trait of practicing caution in advance | |
| Verb | 1. | caution - warn strongly; put on guardwarn - 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" | |