'To bring up the rear' definitions:

Definition of 'To bring up the rear'

From: GCIDE
  • Rear \Rear\, a. Being behind, or in the hindmost part; hindmost; as, the rear rank of a company. [1913 Webster]
  • Rear admiral, an officer in the navy, next in rank below a vice admiral and above a commodore. See Admiral.
  • Rear front (Mil.), the rear rank of a body of troops when faced about and standing in that position.
  • Rear guard (Mil.), the division of an army that marches in the rear of the main body to protect it; -- used also figuratively.
  • Rear line (Mil.), the line in the rear of an army.
  • Rear rank (Mil.), the rank or line of a body of troops which is in the rear, or last in order.
  • Rear sight (Firearms), the sight nearest the breech.
  • To bring up the rear, to come last or behind. [1913 Webster]