Unicode 5.2
Character Definition a small ring or a small piece of board attached to the muzzle of an ox ; to thread through a halter
Jyutping caai1
Unicode Code Point 3BB2

Unicode 12.1
Character Definition a small ring or a small piece of board attached to the muzzle of an ox ; to thread through a halter
Pinyin chōu Jyutping caai1
Unicode Code Point 3BB2

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