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1. Sinking until covered completely with water
   - submergence, submersion, immersion

1. Sink below the surface; go under or as if under water
   - submerse
    
2. Cover completely or make imperceptible
   "I was submerged in work";
   - drown, overwhelm
    
3. Put under water
   "submerge your head completely";
   - submerse
    
4. Fill or cover completely, usually with water
   - inundate, deluge

Type of: cover, flood, go down, go under, immerse, plunge, settle, sink, sinking, spread over

Encyclopedia: Submerge