Definition: a precautionary measure warding off impending danger or damage or injury etc.
Usage: he put an ice pack on the injury as a precaution; an insurance policy is a good safeguard; we let our guard down
Main entry: precaution
Definition: the trait of practicing caution in advance
Definition: judiciousness in avoiding harm or danger
Usage: he exercised caution in opening the door; he handled the vase with care