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Jyutping dai2 dai3
Pinyin dǐ dì

Definitions (Wiktionary)
  1. noun, Hokkien
    exact details; ins and outs
    (syn.) 底细, 根底, 底細
  2. noun, Hokkien
    foundation; basis; base
    (syn.) 底子, 基业, 基業, 基础, 基礎, 根基