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Jyutping am3 maa5
Pinyin àn mǎ

Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)

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Jyutping ngam3 maa5
Pinyin àn mǎ

Definitions (Wiktionary)
  1. noun
    secret code
  2. noun
    secret signs used by a store to indicate the actual value of a commodity which is not known to outsiders