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Jyutping caa4 haau2
Pinyin chá kǎo

Definitions (CC-CEDICT)
  1. to examine
  2. to investigate
  3. to try to determine
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. verb
    to investigate; to ascertain; to research
    (syn.) 研討, 研讨, 研習, 抠, 細究, 研修, 研究, 考究, 细究, 研习, 精研, 探讨, 钻, 调查, 調查, 钻研, 鑽, 鑽研, 探討, 摳