precaution

(n) 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
- we let our guard down
safeguard, guard,
(n) the trait of practicing caution in advance
(n) judiciousness in avoiding harm or danger
- he exercised caution in opening the door
- he handled the vase with care
care, forethought, caution,

safeguard guard care forethought caution

precautional precautionary