sink, settle, go down, go under(verb)

go under, "The raft sank and its occupants drowned"

set, go down, go under(verb)

disappear beyond the horizon

"the sun sets early these days"

go by, go under(verb)

be called; go by a certain name

"She goes by her maiden name again"

go under(verb)ʊ

(of a business) to fail

The company went under two years later.

go under(Verb)

to descend into a body of water

go under(Verb)

to be named, to call oneself

go under(Verb)

to go bankrupt, to collapse