drown

To drown is an action where someone is struggling in water.

Example: I remembered when I was young, I nearly drowned in the lake near my house.

The effect of drowning can also be produced intentionally.

If you drown something, you lose, make hard to find or unnoticeable in a great mass.

Example: The CIA collects so much information that the actual answers it should seek are often drowned in the flood of reports.