go under

Verb

• be called; go by a certain name
  • She goes by her maiden name again
    

• disappear beyond the horizon
  • the sun sets early these days
    

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

Related words

• Synonyms: 
  go by , set , go down , sink , settle
• Antonyms: 
  rise , come up , uprise , ascend , float , swim