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Jyutping jan3 zi2 cin4
Pinyin yìn zi qián

Definitions (CC-CEDICT)
  1. usury
  2. high interest loan (in former times)
Definitions (Wiktionary)
  1. noun, historical
    usury; high-interest loan
    (syn.) 子錢, 閻王債, 阎王债, 高利貸, 高利贷, 子钱