湮 | yān | to inundate / to bury / to cover up / obscured / submerged | |
暗礁 | àn jiāo | submerged reef (rock) | |
扎猛子 | zhā měng zi | to swim with head submerged | |
暗桩 | àn zhuāng | submerged piles installed to prevent the passage of boats / (fig.) informer / spy | |
暗沙 | àn shā | submerged sandbank / submerged coral islet |