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Jyutping si1 dai2 haa6
Pinyin sī dǐ xia

Definitions (CC-CEDICT)
  1. privately
  2. secretly
  3. confidentially
Definitions (粵典–words.hk)
  1. 副詞
    唔​公開​、​其他人​唔​知道​咁​做​一件​事
    in secret, in private, discreetly
    • 我哋已經私底下傾好咗。
      我哋已经私底下倾好咗。
      ngo5 dei6 ji5 ging1 si1 dai2 haa6 king1 hou2 zo2.
      We have sealed the deal in private.
Definitions (Wiktionary)
  1. adv
    privately; secretly; behind one's back
    (syn.) 暗下裡, 私下里, 暗地, 暗靜, 暗下里, 尻脊后, 私下, 尻脊後, 背地里, 背后, 暗裡, 尻川后, 背地, 背後, 暗里, 暗地裡, 暗地里, 私自, 暗静, 尻川後, 暗下, 私下裡, 暗中, 背地裡
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    佢哋私底下都觉得佢个计划好好笑。
    佢哋私底下都覺得佢個計劃好好笑。
    keoi5 dei6 si1 dai2 haa6 dou1 gok3 dak1 keoi5 go3 gai3 waak6 hou2 hou2 siu3.
    • Privately they thought his proposal laughable.
  2. Cantonese
    今次嘅访问比较近呢位讲师嘅日常生活,务求畀读者知多啲佢私底下嘅一面。
    今次嘅訪問比較近呢位講師嘅日常生活,務求畀讀者知多啲佢私底下嘅一面。
    gam1 ci3 ge3 fong2 man6 bei2 gaau3 kan5 ni1 wai2 gong2 si1 ge3 jat6 soeng4 sang1 wut6, mou6 kau4 bei2 duk6 ze2 zi1 do1 di1 keoi5 si1 dai2 haa6 ge3 jat1 min6.
    • The interview this time focuses more on the daily life of this lecturer so as to let readers know more about his private side.
  3. Cantonese
    我今日返工漏咗好大笪M,仲要男同事私底下同我讲先知,好样衰!
    我今日返工漏咗好大笪M,仲要男同事私底下同我講先知,好樣衰!
    ngo5 gam1 jat6 faan1 gung1 lau6 zo2 hou2 daai6 daat3 em1, zung6 jiu3 naam4 tung4 si6 si1 dai2 haa6 tung4 ngo5 gong2 sin1 zi1, hou2 joeng2 seoi1!
    • My menstrual blood leaked accidentally at work today causing a huge stain, and I didn't even know until a male colleague told me in private. It was really embarrassing!
  4. Cantonese
    我哋已经私底下倾好咗。
    我哋已經私底下傾好咗。
    ngo5 dei6 ji5 ging1 si1 dai2 haa6 king1 hou2 zo2.
    • We have sealed the deal in private.
  5. Cantonese
    有啲人虽然私底下有啲怪癖,但只要唔影响到人,就毋须大惊小怪。
    有啲人雖然私底下有啲怪癖,但只要唔影響到人,就毋須大驚小怪。
    jau5 di1 jan4 seoi1 jin4 si1 dai2 haa6 jau5 di1 gwaai3 pik1, daan6 zi2 jiu3 m4 jing2 hoeng2 dou2 jan4, zau6 mou4 seoi1 daai6 geng1 siu2 gwaai3.
    • Some people have eccentricity in private, but as they don't bother others, we need not make storm in a teacup.
Examples (None)
  1. Cantonese
    私底下
    私底下