Definition of "Safety" :
noun: (baseball) the successful act of striking a baseball in such a way that the batter reaches base safely
noun: a score in American football; a player is tackled behind his own goal line
noun: contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
noun: a device designed to prevent injury or accidents
noun: a safe place
"He ran to safety."
noun: the state of being certain that adverse effects will not be caused by some agent under defined conditions
"Insure the safety of the children."