chamber-n; 6 Senses

Sense Number 1: a room, serving a human activity

Commentary: CHAMBER[+structure][-movable][+room][+work/+sleep/+death]
NOTE: implies an unmovable structure, (different from Sense 2)
NOTE: purpose is for social or human activity.

Examples:
The master chamber of the old house had a magnificent canopied bed.
This room of the palace served as a torture chamber.
The attorneys are in chambers right now with the judge. (private rooms for legal affairs)
The committee is holding a meeting in the council chamber.
Millions died in the gas chambers during World War II.
Chamber music is best played in intimate room settings and small halls, not huge venues.
The large, ornate burial chambers of the ancient pharaohs were pillaged by grave robbers.

Mappings:
WordNet 3.0 Sense Numbers: 1, 5

Sense Number 2: a compartment of a larger structure

Commentary: CHAMBER[+structure][+moveable][+component][+compartment][+purposeful]
NOTE: implies the compartment and/or its whole is movable. (different from Sense 1)
NOTE: purpose is of a physical or chemical nature

Examples:
Bob uses a cloud chamber to study tracks produced by moving particles.
The munition of a gun is discharged in the firing chamber.
The human heart has four chambers, two ventricle and two atria.
John spent hours in a hyperbaric chamber after he got the bends while diving.

Mappings:
WordNet 3.0 Sense Numbers: 2

Sense Number 3: a legislative or administrative body

Commentary: CHAMBER[+role][+authority][+administrative][+legislative/+legal/+business] [+group][+assembly][+people][+judge/+legislator/+councilor]

Examples:
That reporter has been assigned to cover the Senate chamber.
Both chambers of the House have approved the bill.
He is working the chamber trying to get enough votes to pass his bill.
The entire chamber stood up and gave him a standing ovation for three minutes.
It's an event put on by the local chamber of commerce.
Much speculation today about what may be going on in the policy chambers of Washington.(metaphoric extension, decision-making parallel to a legislative body)

Mappings:
WordNet 3.0 Sense Numbers: 3, 4

Sense Number 4: Placeholder Sense: Do Not Choose

Examples:

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 5: an underground cavern

Commentary: CHAMBER[+structure][-moveable][+natural][+cavern][+underground]
NOTE: perhaps an extension of Sense 1, but is a natural phenomenon with no purpose.

Examples:
The underground passage opened up into a vast chamber with stalactites and stalagmites.
A series of underground chambers were formed by water eroding limestone.

Mappings:
WordNet 0.0 Sense Numbers: 3

Sense Number 6: none of the above

Commentary: Automatically generated NOTA sense (bbn)

Examples:

Mappings: