Meaning

• A room or set of rooms, particularly:

• A chamberpot.

• The legislature or division of the legislature itself.

  "The resolution, which speedily passed the Senate, was unable to gain a majority in the lower chamber."

• Any enclosed space occupying or similar to a room.

  "A canal lock chamber; a furnace chamber; a test chamber"

• An enlarged space in an underground tunnel of a burrowing animal.

• The area holding the ammunition round at the initiation of its discharge.

  "Dianne loaded a cartridge into the chamber of the rifle, then prepared to take aim at the target."

• One of the bullet-holding compartments in the cylinder of a revolver.

• A short piece of ordnance or cannon which stood on its breech without any carriage, formerly used chiefly for celebrations and theatrical cannonades.

• One of the two atria or two ventricles of the heart.

Meaning

• To enclose in a room.

  "She had chambered herself in her room, and wouldn't come out."

• To reside in or occupy a chamber or chambers.

• To place in a chamber, as a round of ammunition.

  "The hunter fired at the geese and missed, then shrugged his shoulders and chambered another cartridge."

• To create or modify a gun to be a specific caliber.

  "The rifle was originally chambered for 9mm, but had since been modified for a larger, wildcat caliber."

• In martial arts, to prepare an offensive, defensive, or counteroffensive action by drawing a limb or weapon to a position where it may be charged with kinetic energy.

  "Bob chambered his fist for a blow, but Sheila struck first."

• To be lascivious.

Meaning

• A container used for urination and defecation, particularly those used in early modern towns before the advent of the flush toilet.