|Origin:||submergere, from mergere; MERGE|
to cover something completely with water or another liquid:
The tunnel entrance was submerged by rising sea water.
to go under the surface of the water and be completely covered by it:
The submarine submerged.
to hide feelings, ideas, or opinions and make yourself stop thinking about them [= suppress]:
Feelings she thought she'd submerged were surfacing again.
to make yourself very busy doing something, especially in order to forget about something else:
Alice submerged herself in work to try and forget about Tom.
—submergence noun [uncountable]