submerge

Universal Words verb 1 to go under the surface of water or liquid; to put sth or make sth go under the surface of water or liquid: [V] The submarine had had time to submerge before the warship could approach. * [VN] The fields had been submerged by flood water. 2 [VN] (written) to hide ideas, feelings, opinions, etc. completely: Doubts that had been submerged in her mind suddenly resurfaced. submerged adjective: Her submerged car was discovered in the river by police divers. submersion noun [U]