- 咸水湖 xiánshuǐhú saltwater lakeA lake containing a high concentration of dissolved salts and other minerals.
- 咸水鱼 xiánshuǐyú saltwater fishfish that live in the sea or other saltwater environments
- 半咸水湖 bànxiánshuǐhú brackish lakea lake formed where seawater and freshwater mix, typically found near coastlines; brackish-water lake
- 咸水妹 xiánshuǐmèi prostitute(dialect) a prostitute who services foreigners, particularly associated with pre-revolutionary Shanghai or Guangdong; originally a loanword from English "handsome maid" meaning a beautiful maidservant.