補子 (bou2 zi2) — mandarin square (a rank badge sewed on to the surcoat of an officials in the past) in Cantonese
bouˊ²補ziˊ²子简 补子
Mandarin Pinyin: bu3 zi3
Meaning of 補子
nounmandarin square (a rank badge sewed on to the surcoat of an officials in the past)