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Jyutping caai1 kyun2
Pinyin cāi quán

Definitions (Kaifangcidian)
  1. 划拳
  2. 猜拳

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Jyutping caai1 kyun4
Pinyin cāi quán

Definitions (CC-CEDICT)
  1. finger-guessing game
  2. rock-paper-scissors game
  3. morra
Definitions (粵典–words.hk)
  1. 動詞
    用​手勢​進​行​嘅​決​勝​遊​戲​,​各​玩家​同時​出示​一個​手勢​,​按​不同​規則​分勝負​;​廣東話​多數​指​猜​包​剪​揼
    a series of games played with hand sign, the winner sign is determined according to the rule of the game. Literally: to guess fist
  2. 動詞
    普通​話​用​來​指​猜枚
    Mandarin term of 猜枚
Definitions (Wiktionary)
  1. verb, intransitive, verb-object
    to play a game in which the participant guesses the figures the opponent will express with fingers, often as a drinking game
    (syn.) 划拳, 攘, 发拳, 猜枚, 喝拳, 發拳
  2. verb, intransitive, verb-object
    to play rock paper scissors
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)