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Jyutping caai1 si6
Pinyin chā shì

Definitions (Wiktionary)
  1. adj, colloquial
    poor; not up to standard
  2. noun, literary
    strange thing

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Jyutping caai1 si6
Pinyin chāi shi

Definitions (CC-CEDICT)
  1. errand
  2. assignment
  3. job
  4. commission
  5. CL:件[jian4]
  6. see also 差使[chai1 shi5]
Definitions (Wiktionary)
  1. noun
    errand; assignment; commission (Classifier: 件)
    (syn.) 差使
  2. noun, historical, literary
    messenger; emissary
    (syn.) 差使
  3. noun, historical, literary
    official post; temporarily appointed position
    (syn.) 差使
  4. noun
    job; post; position (Classifier: 件)
  5. noun, historical, literary
    criminal

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Jyutping caai1 si6
Pinyin chà shì

Definitions (CC-CEDICT)
  1. poor
  2. not up to standard
Definitions (粵典–words.hk)
  1. 名詞
    任務​;​俾人​ ​差遣​去​做​嘅​嘢​(​量​詞​:​件​)
    duty; assignment
    • 佢俾咗件差事我做。
      佢俾咗件差事我做。
      He assigned a job to me.
  2. 名詞
    工作​;​職業​(​量​詞​:​份​)
    job; work
    • 我逼佢讀書,都係想佢第時有份好差事啫。
      我逼佢读书,都系想佢第时有份好差事啫。
      I force him to study, just because I want him to have a good job in the future.
  3. 近義詞
    任務
Definitions (Wiktionary)
  1. adj, colloquial
    poor; not up to standard
  2. noun, literary
    strange thing
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    说服他中止旅行真是件苦差事。
    説服他中止旅行真是件苦差事。
    shuō fú tā zhōng zhǐ lǚ xíng zhēn shi jiàn kǔ chāi shi 。
    • I had a hard time trying to persuade him to cancel the trip.
  2. Mandarin
    这不是件困难的差事。
    這不是件困難的差事。
    zhè bu shì jiàn kùn nan de chà shì 。
    • This isn't a difficult job.
Examples (粵典–words.hk)
  1. Cantonese
    差事
    差事
    caai1 si6
    • duty
  2. Cantonese
    佢俾咗件差事我做。
    佢俾咗件差事我做。
    • He assigned a job to me.
  3. Cantonese
    我逼佢读书,都系想佢第时有份好差事啫。
    我逼佢讀書,都係想佢第時有份好差事啫。
    • I force him to study, just because I want him to have a good job in the future.