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Jyutping leoi3
Pinyin

Definitions (CC-CANTO)
  1. backbone/strength

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Jyutping leoi5
Pinyin

Definitions (CC-CEDICT)
  1. backbone
  2. strength
Definitions (CC-CANTO)
  1. backbone/strength
Definitions (Wiktionary)
  1. character
    backbone; spinal column
Definitions (Unihan)
  1. backbone, spinal column
  2. Cangjie Input
    YVB