precaution
noun
a precautionary measure warding off impending danger or damage or injury etc.
“he put an ice pack on the injury as a precaution”
“an insurance policy is a good safeguard”
the trait of practicing caution in advance
judiciousness in avoiding harm or danger
“he exercised caution in opening the door”
“he handled the vase with care”
Source: WordNet 3.1, Princeton University
