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Jyutping zeoi6 saa1 sing4 taap3
Pinyin jù shā chéng tǎ

Definitions (CC-CEDICT)
  1. sand grains accumulate to make a tower a tower (idiom); by gathering small amounts one gets a huge quantity
  2. many a mickle makes a muckle
Definitions (粵典–words.hk)
  1. 語句
    積少成​多
    tiny things, like sand, things accumulate into big and great things, like a tower
Definitions (Wiktionary)
  1. phrase, idiomatic
    by gathering small amounts one gets a huge quantity, many a mickle makes a muckle
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    聚沙成塔
    聚沙成塔
    zeoi6 saa1 sing4 taap3
    • to make a sandcastle