| noun | a precautionary measure warding off impending danger or damage or injury etc. “he put an ice pack on the injury as a precaution” |
| noun | the trait of practicing caution in advance |
| noun | judiciousness in avoiding harm or danger “he exercised caution in opening the door” |
| precautionary | adjective | taken in advance to protect against possible danger or failure |
| safeguard | verb | make safe |
| cautious | adjective | showing careful forethought |