Meaning : A precautionary measure warding off impending danger or damage or injury etc..
Example :
He put an ice pack on the injury as a precaution.
An insurance policy is a good safeguard.
We let our guard down.
Synonyms : guard, precaution
Meaning : A document or escort providing safe passage through a region especially in time of war.
Synonyms : safe-conduct
Safeguard meaning in Bengali (Bangla).