Sink (Noun)

Meaning ¹

A depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof.

Classification

Nouns denoting natural objects (not man-made).

Synonyms

• Swallow Hole
• Sinkhole

Hypernyms

• Natural Depression

Meaning ²

A covered cistern; waste water and sewage flow into it.

Classification

Nouns denoting man-made objects.

Synonyms

• Cesspool
• Cesspit
• Sump

Hypernyms

• Cistern

Meaning ³

(technology) a process that acts to absorb or remove energy or a substance from a system; "the ocean is a sink for carbon dioxide".

Classification

Nouns denoting natural processes.

Antonyms

• Source

Hypernyms

• Activity
• Natural Action
• Action

Meaning ⁴

Plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe.

Classification

Nouns denoting man-made objects.

Hyponyms

• Washstand
• Lavatory
• Basin
• Washbowl