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Jyutping sap6 ji6 zi1
Pinyin shí èr zhī

Definitions (CC-CEDICT)
  1. the 12 earthly branches 子[zi3], 丑, 寅, 卯, 辰, 巳, 午, 未, 申, 酉, 戌, 亥 (used cyclically in the calendar and as ordinal number)
Definitions (Wiktionary)
  1. noun
    a gambling game, commonly referred to as "chap ji kee" in English sources, which used the 12 cards of the 四色牌 (four colour cards) deck, each of which has a different character drawn from those used in Chinese chess (象棋 (xiàngqí))
  2. noun
    the 12 "earthly branches" 子 (zǐ), 丑 (chǒu), 寅 (yín), 卯 (mǎo), 辰 (chén), 巳 (sì), 午 (wǔ), 未 (wèi), 申 (shēn), 酉 (yǒu), 戌 (xū), 亥 (hài) (used cyclically in the calendar and as ordinal number)
Examples (粵典–words.hk)
  1. Cantonese
    散装水一支五蚊,一箱十二支水四十五蚊。
    散裝水一支五蚊,一箱十二支水四十五蚊。
    saan2 zong1 seoi2 jat1 zi1 ng5 man1, jat1 soeng1 sap6 ji6 zi1 seoi2 sei3 sap6 ng5 man1.
    • One bottle of water is 5 dollars, one box of water with 12 bottles of water is 45 dollars.