safeguard

nouns

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

verbs

make safe
is a type of (narrower)
shield from danger, injury, destruction, or damage
"Weatherbeater protects your roof from the rain"
escort safely
is a type of (narrower)
accompany as an escort
"She asked her older brother to escort her to the ball"