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Jyutping go1 si6 dik1
Pinyin gē shì dí

Definitions (Wiktionary)
  1. noun, Hong-Kong
    caustic soda; sodium hydroxide

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Jyutping go1 si6 dik1
Pinyin gē shì de

Definitions (粵典–words.hk)
  1. 名詞、外來語
    即​係​氫​氧化​鈉​(​NaOH​)​,​係​一種​強鹼​,​腐蝕​性強​;​呢​個​俗稱​通常​同清潔​用途​有關​,​係​從​英文​慣用​名頭​一個​字音​譯過​嚟
    caustic soda (transliteration of the first word which is often confined to cleansing use)
    • 哥士的可以通渠。
      哥士的可以通渠。
      go1 si6 dik1 ho2 ji5 tung1 keoi4.
      Caustic soda can be used to unblock the drainage.
Examples (粵典–words.hk)
  1. Cantonese
    哥士的可以通渠。
    哥士的可以通渠。
    go1 si6 dik1 ho2 ji5 tung1 keoi4.
    • Caustic soda can be used to unblock the drainage.