safeguard in WordNet English dictionary

1. 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"
   precaution  safeguard  guard 
   
2. a document or escort providing safe passage through a region especially in time of war
   safe-conduct  safeguard 
   

1. make safe
   safeguard 
   
2. escort safely
   safeguard