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Jyutping naai5 fui3 zai2
Pinyin nǎi huì zǎi

Definitions (Wiktionary)
  1. noun, Taiwanese-Hokkien, Zhangzhou
    nipple of a baby bottle
    (syn.) 奶头子, 奶嘴, 奶仔頭, 奶头, 奶頭子, 奶仔头, 奶頭, 奶嘴嘴, 奶喙
  2. noun, Zhangzhou-Hokkien
    air valve of a bicycle tyre
    (syn.) 奶仔喙, 奶觱仔
  3. noun, Taiwanese-Hokkien
    pacifier; dummy
    (syn.) 奶喙, 牛奶喙仔, 奶嘴