nouns
plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe
is a type of (narrower)
a fixture for the distribution and use of water in a building
(technology) a process that acts to absorb or remove energy or a substance from a system
"the ocean is a sink for carbon dioxide"
domain category
the discipline dealing with the art or science of applying scientific knowledge to practical problems
"he had trouble deciding which branch of engineering to study"
is a type of (narrower)
a process existing in or produced by nature (rather than by the intent of human beings)
"the action of natural forces"; "volcanic activity"
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
verbs
fall or descend to a lower place or level
"He sank to his knees"
cause to sink
"The Japanese sank American ships in Pearl Harbor"
verb group
go under, "The raft sank and its occupants drowned"
is a type of (narrower)
cause to move or shift into a new position or place, both in a concrete and in an abstract sense
"Move those boxes into the corner, please"; "I'm moving my money to another bank"; "The director moved more responsibilities onto his new assistant"
causes
go under, "The raft sank and its occupants drowned"
pass into a specified state or condition
"He sank into nirvana"
go under, "The raft sank and its occupants drowned"
descend into or as if into some soft substance or place
"He sank into bed"; "She subsided into the chair"
appear to move downward
"The sun dipped below the horizon"; "The setting sun sank below the tree line"
fall heavily or suddenly; decline markedly
"The real estate market fell off"
fall or sink heavily
"He slumped onto the couch"; "My spirits sank"
embed deeply
"She sank her fingers into the soft sand"; "He buried his head in her lap"