drain-n; 5 Senses

Sense Number 1: the removal of liquid, especially water, from an area

Commentary: DRAIN[+process][+removal][+of_liquid][+from_area]

Examples:
Environmentalists were protesting the proposed drain of the wetland.
Uplifting of the land over millennia caused a gradual drain of the inland sea.

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 2: a small surgical tube to remove bodily fluids

Commentary: DRAIN[+artifact][+tube][+surgical][+for_removal][+of_fluids][+bodily]

Examples:
The doctor inserted drains in the child's ears to help against chronic ear infections.
The patient had a drain inserted in the throat during the surgery.

Mappings:
WordNet 3.0 Sense Numbers: 2

Sense Number 3: plumbing pipes that transport liquid away

Commentary: DRAIN[+artifact][+plumbing][+transporter][+of_liquid]

Examples:
The drain under the kitchen sink was clogged.
Leaves and other debris were washed down the storm drains.
The odor was caused by a crack in one of the town's sewer drains.

Mappings:
WordNet 3.0 Sense Numbers: 3

Sense Number 4: the gradual depletion of a resource

Commentary: DRAIN[+process][+depletion][+gradual][+of_resource]

Examples:
The home renovations have been a big drain on John's pocketbook.
All these new projects are a serious drain on the state's budget.
The opportunities overseas have led to a drain of engineering talent locally.
The candidate warned the current drain on natural resources was not sustainable.

Mappings:
WordNet 3.0 Sense Numbers: 4

Sense Number 5: a complete lack of success

Commentary: IDIOM: DOWN_THE_DRAIN

Examples:
All their efforts to keep the treaty alive went down the drain.
His acting career went down the drain after that fiasco of a movie.

Mappings:
WordNet 0.0 Sense Numbers: Idiom