To be suffocated by immersion in water or other liquid.To suffocate by immersion in water or other liquid; hence, to destroy, extinguish, or ruin by or as if by submersion.To overflow; inundate: as, to drown land.Figuratively, to plunge deeply; submerge; overwhelm: as, to drown remorse in sensual pleasure.In physical geography, to submerge beneath the waters of a lake or ocean: said of a valley that is thus converted into a bay by a relative change of land- and water-level. See drowned stream.In tobacco culture, to injure by long-continued rain followed by warm sunshine. The tobacco soon wilts under these conditions. Also called scald.