noun
plural -ties
[noncount] :freedom from harm or danger :the state of being safe
[noncount] :the state of not being dangerous or harmful
[noncount] :a place that is free from harm or danger :a safe place
[count] US :a device that prevents a gun from being fired accidentally - called also safety catch
[count] American football
a defensive player whose position is far back from the line of scrimmage
a score of two points for the defensive team when an offensive player who has the ball is tackled behind his own team's goal line