To kill by suffocating in water or another liquid.
To die from suffocation while immersed in water or other fluid.
To be flooded: to be inundated with or submerged in (literally) water or (figuratively) other things; to be overwhelmed.
To inundate, submerge, overwhelm.
To obscure, particularly amid an overwhelming volume of other items.
The removal of a block or blockage.
To remove or clear a block or obstruction from.
In whist, to throw away a high card so as not to interrupt one's partner's long suit.
To free or make available.
To enable communication again, via telephone, instant messaging, etc., with (somebody previously blocked).