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Jyutping tou2 lung4
Pinyin tǔ lóng

Definitions (Wiktionary)
  1. noun
    Synonym of 蚯蚓 (qiūyǐn, “earthworm”).
    (syn.) 蚯蚓
  2. noun
    dragon made of soil (used in ancient times for rain prayers)
  3. noun
    Synonym of 鼉/鼍 (tuó, “Chinese alligator”).
    (syn.) 鼉, 鼍
Examples (粵典–words.hk)
  1. Cantonese
    五方五土龙神、前后地主财神
    五方五土龍神、前後地主財神
    ng5 fong1 ng5 tou2 lung4 san4, cin4 hau6 dei6 zyu2 coi4 san4
    • "Dragon Gods/Kings of Five Directions and Five Regions", "Lord of the Land of the Front and Back, the God of Wealth"