guard

noun

1.
a person who keeps watch over something or someone
boroughward holdand wardman
Derived from:
guard
2.
the person who lines up between the center and the tackles on the offensive line of a football team on the line of scrimmage
3.
a device designed to prevent injury or accidents
safety safety device
4.
a posture of defence in boxing or fencing
5.
the person who plays the position of guard on a basketball team
6.
a military unit serving to protect some place or person
wardsettle
Derived from:
guard
7.
a precautionary measure warding off impending danger or damage or injury etc.
forecare precaution safeguard
8.
the duty of serving as a sentry
guard duty sentry duty sentry go
Derived from:
guard
9.
(American football) a position on the line of scrimmage between the center and the tackles
10.
a position on a basketball team
11.
a soldier who is a member of a unit called ‘the guard’ or ‘guards’