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Jyutping zi1 gei2
Pinyin zhī jī

Definitions (Wiktionary)
  1. noun, literary
    to foresee; to prophesy
    (syn.) 知機, 知机
Examples (粵典–words.hk)
  1. Cantonese
    婆婆不知几醒!
    婆婆不知幾醒!
    po4 po2 bat1 zi1 gei2 sing2!
    • The old lady is smarter than you'd think!
  2. Cantonese
    啲人见到壁虎就惊,其实壁虎不知几好,会食囇啲蚊虫。
    啲人見到壁虎就驚,其實壁虎不知幾好,會食囇啲蚊蟲。
    di1 jan4 gin3 dou2 bik1 fu2 zau6 geng1, kei4 sat6 bik1 fu2 bat1 zi1 gei2 hou2, wui5 sik6 saai3 di1 man1 cung4.
    • Some people are terrified when they see a gecko. Actually geckos are pretty nice, as they feed on mosquitos and insects.
  3. Cantonese
    屋企人个个都各散东西,唔知几时先可以一家团聚。
    屋企人個個都各散東西,唔知幾時先可以一家團聚。
    uk1 kei2 jan4 go3 go3 dou1 gok3 saan3 dung1 sai1, m4 zi1 gei2 si4 sin1 ho2 ji5 jat1 gaa1 tyun4 zeoi6
    • My family members are scattered over the globe. I wonder when we will be reunited together again.
  4. Cantonese
    甲:「好春废啊你,仲话自己系羽毛球王子。」乙:「咩啊!今铺让你咋,我平时不知几春劲!」
    甲:「好春廢啊你,仲話自己係羽毛球王子。」乙:「咩啊!今鋪讓你咋,我平時不知幾春勁!」
    hou2 ceon1 fai3 aa3 nei5, zung6 waa6 zi6 gei2 hai6 jyu5 mou4 kau4 wong4 zi2. me1 aa3! gam1 pou1 joeng6 nei5 zaa3, ngo5 ping4 si4 bat1 zi1 gei2 ceon1 ging6!
    • A: "You play so frigg'n poorly, Prince of Badminton!" B: "What? I'm just letting you win intentionally. I usually play much better than that!"
  5. Cantonese
    邮局就喺正楼下,不知几方便。
    郵局就喺正樓下,不知幾方便。
    jau4 guk2 zau6 hai2 zeng3 lau4 haa6, bat1 zi1 gei2 fong1 bin6.
    • The post office is right downstairs, how convenient.