How do you say thirst in Chinese?
— 口渴 (kǒukě)

Generic synonyms for thirst in Chinese
want要 (yào), 想 (xiǎng), 想要 (xiǎngyào), 願意, 愿意 (yuànyi), 需要 (xūyào)
Derivative terms for thirst in Chinese
hungry飢餓, 饥饿 (jī'è), 餓, 饿 (è), 飢, 饥 (jī)
thirsty渴 (kě), 口渴 (kǒukě)