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Jyutping cing2 si6
Pinyin qǐng shì

Definitions (粵典–words.hk)
  1. 動詞
    向上​級​請求​指示
    to ask for instructions, especially from somebody's superior
    • 呢件事我要請示上司之後先答覆你。
      呢件事我要请示上司之后先答复你。
      lei1 gin6 si6 ngo5 jiu3 cing2 si6 soeng6 si1 zi1 hau6 sin1 daap3 fuk1 nei5
      For this matter, I must wait for instructions from my boss before getting back to you.

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Jyutping ceng2 si6
Pinyin qǐng shì

Definitions (CC-CEDICT)
  1. to ask for instructions
Definitions (Wiktionary)
  1. verb
    to request for instructions; to refer to (a higher authority)
  2. noun
    written request for instructions
Examples (粵典–words.hk)
  1. Cantonese
    呢件事我要请示上司之后先答复你。
    呢件事我要請示上司之後先答覆你。
    lei1 gin6 si6 ngo5 jiu3 cing2 si6 soeng6 si1 zi1 hau6 sin1 daap3 fuk1 nei5
    • For this matter, I must wait for instructions from my boss before getting back to you.
  2. Cantonese
    请示
    請示
    cing2 si6
    • to ask for instructions