Safety

English

safety (pl. safeties)

The condition or feeling of being safe; security; certainty.
Always wear your seat belt for safety.
A mechanism on a weapon or dangerous equipment designed to prevent accidental use
Be sure that the safety is set before proceeding.
(American football) When a player is either tackled in or loses the ball out of his team's own end zone resulting in two points for the opposite team
He sacked the quarterback in the end zone for a safety.
(American football) The defensive players who are in position furthest from the line of scrimmage and whose responsibility is to defend against passes as well as to be the tacklers of last resort
The free safety made a game-saving tackle on the runner who had broken past the linebackers.