a position on a basketball team | a person whose duty is to throw troublemakers out of a bar or public meeting |
the duty of serving as a sentry | |
(American football) a position on the line of scrimmage between the center and the tackles | |
a precautionary measure warding off impending danger or damage or injury etc. | |
a device designed to prevent injury or accidents | |
a posture of defence in boxing or fencing | |
a military unit serving to protect some place or person | |
the person who lines up between the center and the tackles on the offensive line of a football team on the line of scrimmage | |
a person who keeps watch over something or someone | |
the person who plays the position of guard on a basketball team | |