Definition of GUARD

  1. (noun)a person who keeps watch over something or someone
  2. (noun)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. (noun)a device designed to prevent injury or accidents
  4. (noun)a posture of defence in boxing or fencing
  5. (noun)the person who plays the position of guard on a basketball team
  6. (noun)a military unit serving to protect some place or person
  7. (noun)a precautionary measure warding off impending danger or damage or injury etc.
  8. (noun)the duty of serving as a sentry
  9. (noun)(American football) a position on the line of scrimmage between the center and the tackles
  10. (noun)a position on a basketball team
  11. (verb)to keep watch over
  12. (verb)watch over or shield from danger or harm; protect
  13. (verb)protect against a challenge or attack
  14. (verb)take precautions in order to avoid some unwanted consequence