口水 kǒushuǐ saliva
How to remember 口水: 口 mouth (Kangxi radical 30) + 水 water = saliva.
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How it is used
- 'Saliva / spit' - 流口水 (liú kǒushuǐ) to drool, 口水战 (kǒushuǐzhàn) a war of words.
- The everyday word for saliva; figuratively 口水歌 (kǒushuǐgē) is a catchy throwaway pop song, and 口水仗 is a pointless verbal squabble.