fall or descend to a lower place or level
cause to sink
pass into a specified state or condition
plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe
descend into or as if into some soft substance or place
go under, "The raft sank and its occupants drowned"
appear to move downward
fall heavily or suddenly; decline markedly
embed deeply
fall or sink heavily
