| a position on a basketball team |
| 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 |