Safe  —adj. 1 free of danger or injury. 2 secure, not risky (in a safe place). 3 reliable, certain. 4 prevented from escaping or doing harm (have got him safe). 5 (also safe and sound) uninjured; with no harm done. 6 cautious, unenterprising. —n. 1 strong lockable cabinet etc. For valuables. 2 = *meat safe.  on the safe side with a margin for error.  safely adv. [french sauf from latin salvus]