Definitions
1.verbTo die from suffocation while immersed in water or other fluid.
2.verbTo kill by suffocating in water or another liquid.
3.verbTo be flooded: to be inundated with or submerged in (literally) water or (figuratively) other things; to be overwhelmed.
4.verbTo inundate, submerge, overwhelm.
5.verb(usually passive) To obscure, particularly amid an overwhelming volume of other items."The answers intelligence services seek are often drowned in the flood of information they can now gather."
6.adjectiveThat has died by drowning."a drowned rat"