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1. Warn strongly; put on guard
   - admonish, monish

1. The trait of being cautious; being attentive to possible danger
   "a man of caution";
   - cautiousness, carefulness
    
2. A warning against certain acts
   "a caution against unfair practices";
   - caveat
    
3. Judiciousness in avoiding harm or danger
   "he exercised caution in opening the door";
   - precaution, care, forethought
    
4. The trait of being circumspect and prudent
   - circumspection

Derived forms: cautioned, cautioning, cautions

Type of: attentiveness, discernment, discretion, judiciousness, warn, warning

Antonym: incaution

Encyclopedia: Caution