cover completely or make imperceptible; "I was drowned in work"; "The noise drowned out her speech" put under water; "submerge your head completely" sink below the surface; go under or as if under water
If something submerges or if you submerge it, it goes below the surface of some water or another liquid. Hippos are unable to submerge in the few remaining water holes The river burst its banks, submerging an entire village
If you submerge yourself in an activity, you give all your attention to it and do not think about anything else. He submerges himself in the world of his imagination