sink-n; 4 Senses

Sense Number 1: water basin connected to drainpipe

Commentary: SINK[+artifact][+basin][+water][+with_drainpipe]

Examples:
Mary rinsed the lettuce off in the kitchen sink.
The couple looked at various tub and sink styles at the kitchen-and-bath store.
The sink is stopped up.

Mappings:
PropBank: NM
WordNet 3.0 Sense Numbers: 1

Sense Number 2: a process or a body that removes or extracts enery or substance from a system

Commentary: SINK[+role][+event][+agent][+remover][+energy_or_substance][+from_system]

Examples:
The ocean serves as a sink for CO2.
The device acts as a heat sink.

Mappings:
PropBank: NM
WordNet 3.0 Sense Numbers: 2

Sense Number 3: a geological depression or hole in the ground, often in limestone

Commentary: SINK[+location][+geological][+depression][+in_ground]

Examples:
They explored a series of limestone caverns and sinks.
Cenotes in the Yucatan are very deep sinks filled with water.

Mappings:
PropBank: NM
WordNet 3.0 Sense Numbers: 3

Sense Number 4: a covered cistern, cesspool

Commentary: SINK[+artifact][+cistern][+covered][+cesspool]

Examples:
These houses have their own black water sinks and are not connected to the city sewer system.
City government had become a sink of corruption and vice. (mataphoric extension)

Mappings:
PropBank: NM
WordNet 3.0 Sense Numbers: 4