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Jyutping jat1 zi1 bun3 gaai2
Pinyin yī zhī bàn jiě

Definitions (CC-CEDICT)
  1. lit. to know one and understand half (idiom); a smattering of knowledge
  2. dilettante
  3. amateur
Definitions (粵典–words.hk)
  1. 動詞
    認識​唔​深​,​祇​係​知少少
    to have incomplete knowledge of something
    • 我對呢個題目都係一知半解,你揾第二個教你啦。
      我对呢个题目都系一知半解,你揾第二个教你啦。
      ngo5 deoi3 ni1 go3 tai4 muk6 dou1 hai6 jat1 zi1 bun3 gaai2, nei5 wan2 dai6 ji6 go3 gaau3 nei5 laa1.
      I don't know this topic very well, why don't you ask someone else to help.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to sort of understand; to only halfway understand; to be unsure of the meaning (of a word or phrase)
    • 世上最可笑的是那些“知識裏手”,有了道聽塗説的一知半解,便自封為“天下第一”,適足見其不自量而已。
      世上最可笑的是那些“知识里手”,有了道听涂说的一知半解,便自封为“天下第一”,适足见其不自量而已。
      shì shàng zuì kě xiào de shì nà xiē “ zhī shi lǐ shǒu ” , yǒu le dào tīng tú shuō de yī zhī bàn jiě , biàn zì fēng wéi “ tiān xià dì yī ” , shì zú jiàn qí bù zì liàng ér yǐ .
      The most ridiculous person in the world is the “know all” who picks up a smattering of hearsay knowledge and proclaims themselves “the world's Number One authority”; this merely shows that they have not taken a proper measure of themselves.
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    一知半解很危险。
    一知半解很危險。
    yī zhī bàn jiě hěn wēi xiǎn 。
    • A little learning is a dangerous thing.
Examples (粵典–words.hk)
  1. Cantonese
    一知半解
    一知半解
    jat1 zi1 bun3 gaai2
    • to have only a smattering of
  2. Cantonese
    我对呢个题目都系一知半解,你揾第二个教你啦。
    我對呢個題目都係一知半解,你揾第二個教你啦。
    ngo5 deoi3 ni1 go3 tai4 muk6 dou1 hai6 jat1 zi1 bun3 gaai2, nei5 wan2 dai6 ji6 go3 gaau3 nei5 laa1.
    • I don't know this topic very well, why don't you ask someone else to help.
Examples (Wiktionary)
  1. Mandarin
    世上最可笑的是那些“知识里手”,有了道听涂说的一知半解,便自封为“天下第一”,适足见其不自量而已。
    世上最可笑的是那些“知識裏手”,有了道聽塗説的一知半解,便自封為“天下第一”,適足見其不自量而已。
    shì shàng zuì kě xiào de shì nà xiē “ zhī shi lǐ shǒu ” , yǒu le dào tīng tú shuō de yī zhī bàn jiě , biàn zì fēng wéi “ tiān xià dì yī ” , shì zú jiàn qí bù zì liàng ér yǐ .
    • The most ridiculous person in the world is the “know all” who picks up a smattering of hearsay knowledge and proclaims themselves “the world's Number One authority”; this merely shows that they have not taken a proper measure of themselves.