(1):

(p. pr. & vb. n.) of Breech

(2):

(n.) A whipping on the breech, or the act of whipping on the breech.

(3):

(n.) That part of a harness which passes round the breech of a horse, enabling him to hold back a vehicle.

(4):

(n.) A strong rope rove through the cascabel of a cannon and secured to ringbolts in the ship's side, to limit the recoil of the gun when it is discharged.

(5):

(n.) The sheet iron casing at the end of boilers to convey the smoke from the flues to the smokestack.