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Jyutping faa1 aat3
Pinyin huā yā

Definitions (CC-CEDICT)
  1. signature (in grass-style writing)
  2. symbol used in place of a signature (on a document, contract etc)
Definitions (Wiktionary)
  1. noun
    stylized signature; tughra
    (syn.) 花字
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)