Breech

Breech may refer to:

• Breeches, an item of clothing covering the body from the waist down
• Breech, in a breech-loading weapon, is a chamber integral to the rear portion of a gun barrel that receives the shell, cartridge, or ammunition
• Buttocks, the lower part of the human abdomen
• The lower part of a pulley block
• The penetration of a boiler where exhaust gases leave it