Permit issued by an authority which guarantees a person to enter and spend time in a place in which otherwise she could not enter.
Something that serves as a guard or protection; a defense.
warding off an impending threat
make safe
escort safely
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"
a document or escort providing safe passage through a region especially in time of war
a precautionary measure warding off impending danger or damage or injury etc.
