safe 
(sāf)
(sāf)adj. saf·er, saf·est
1.
a. Free from danger or injury; undamaged or unhurt: He returned from the voyage safe and sound.
b. Not exposed to the threat of danger or harm: The children were safe at home all through the storm.
c. Usable in specified conditions without being damaged. Often used in combination: a microwave safe container.
2. Free from risk; not liable to be lost; sure: a safe bet.
3. Affording protection: a safe place.
4. Baseball Having reached a base without being put out, as a batter or base runner.
n.
1. A metal container usually having a lock, used for storing valuables.
2. A repository for protecting stored items, especially a cooled compartment for perishable foods: a cheese safe.
[Middle English sauf, from Old French, from Latin salvus, healthy; see sol- in the Appendix of Indo-European roots.]
safely adv.
safeness n.