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Jyutping zi2
Pinyin

Definitions (Wiktionary)
  1. character, literary
    mat made of thin bamboo strips
Definitions (Unihan)
  1. bed boards, sleeping mat
  2. Cangjie Input
    HLXH

笫 [-]

Jyutping
Pinyin

Definitions (CC-CEDICT)
  1. bamboo mat
  2. bed mat