submerge

Verb

• fill or cover completely, usually with water

• put under water
  • submerge your head completely
    

• cover completely or make imperceptible
  • I was drowned in work
    
  • The noise drowned out her speech
    

• sink below the surface; go under or as if under water

Related words

• Synonyms: 
  inundate , deluge , submerse , drown , overwhelm