Most commonly encountered as a surname. In Taiwan it can also be read jù in the sense 'startled', though qú is the standard mainland reading. The character pictograms a wide-eyed bird (隹 zhuī, short-tailed bird) under two eyes (目 repeated).
culture
瞿昙 (Qútán) is the Chinese rendering of Gautama, the Buddha's family name — so 瞿 sometimes appears in Buddhist contexts as shorthand for the Buddha or his teachings.
