sink

Fall heavily or suddenly; decline markedly.

Descend into or as if into some soft substance or place.

Cause to sink.

Appear to move downward.

Fall or descend to a lower place or level.

Go under.

Pass into a specified state or condition.

Fall or sink heavily.

Embed deeply.

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

(technology) a process that acts to absorb or remove energy or a substance from a system.

“the ocean is a sink for carbon dioxide”

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

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