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Jyutping tung1 seoi2
Pinyin tōng shuǐ

Definitions (CC-CEDICT)
  1. to have running water (in a house etc)
Definitions (CC-CANTO)
  1. (verb) secretively give examine answers or confidential info to others
Definitions (粵典–words.hk)
  1. 動詞
    作弊​、​暗啞​底傳​遞訊息
    to inform sby secretly; to tip sby off. literally: through water
    • 佢哋因為考試通水俾先生罰。
      佢哋因为考试通水俾先生罚。
      keoi5 dei6 jan1 wai6 haau2 si3 tung1 seoi2 bei2 sin1 saang1 fat6.
      They were punished by the teacher for tipping each other off in the examination.
  2. 動詞
    給予​提示
    to give secret information, to give tips, hints, e.g. to students about an examination, to the police
Definitions (Wiktionary)
  1. verb
    to supply water
  2. verb, literary
    to act as an inside man; to provide assistance from the inside
    (syn.) 内应, 內應
  3. verb
    to clear a waterway
  4. verb, Cantonese, colloquial
    to tip off someone
Definitions (Kaifangcidian)
  1. 串通
  2. 作弊
  3. 傳小抄 – 传小抄
  4. 通風報信 – 通风报信
  5. 暗通消息
  6. 私通消息
  7. 串通作弊
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    孔子说:"像夏禹的为人,我找不到可以指责的漏洞。自己吃著菲薄的饮食,而却用丰厚祭品祭拜祖先与神明;自己平时穿粗劣的衣裳,而在祭祀时穿戴华服礼帽;自己住小房子,却尽力开通水道沟渠。像夏禹这样的人,我实在找不到可以指责的漏洞了。"
    孔子說:"像夏禹的為人,我找不到可以指責的漏洞。自己吃著菲薄的飲食,而卻用豐厚祭品祭拜祖先與神明;自己平時穿粗劣的衣裳,而在祭祀時穿戴華服禮帽;自己住小房子,卻盡力開通水道溝渠。像夏禹這樣的人,我實在找不到可以指責的漏洞了。"
    kǒng zǐ shuō :" xiàng xià yǔ de wéi rén , wǒ zhǎo bu dào kě yǐ zhǐ zé de lòu dòng 。 zì jǐ chī zhù fěi bó de yǐn shí , ér què yòng fēng hòu jì pǐn jì bài zǔ xiān yǔ shén míng ; zì jǐ píng shí chuān cū liè de yī shang , ér zài jì sì shí chuān dài huá fú lǐ mào ; zì jǐ zhù xiǎo fáng zi , què jìn lì kāi tōng shuǐ dào gōu qú 。 xiàng xià yǔ zhè yàng de rén , wǒ shí zài zhǎo bu dào kě yǐ zhǐ zé de lòu dòng le 。"
    • Confucius said: " Yu the Great's conduct, I could not point out any flaws. He consumes meager amount of food, while offering boastful riches to the Gods and ancestors; He always don the crudest attire, but wears lavish garments when worshipping; He resides in a small house, yet forges water ways and ditches with all his might. Figures like Yu the Great, I honestly cannot point out any reprehensible flaws."
  2. Mandarin
    劳莉通水性。
    勞莉通水性。
    láo lì tōng shuǐ xìng 。
    • Laurie knows how to swim.
Examples (粵典–words.hk)
  1. Cantonese
    我母校试过有老师通水畀学生,提升班内合格率。
    我母校試過有老師通水畀學生,提升班內合格率。
    ngo5 mou5 haau6 si3 gwo3 jau5 lou5 si1 tung1 seoi2 bei2 hok6 saang1, tai4 sing1 baan1 noi6 hap6 gaak3 leot2.
    • A teacher in my alma mater leaked the questions of a(n) quiz/test/exam in order to raise the passing rate in the class.
  2. Cantonese
    佢哋因为考试通水俾先生罚。
    佢哋因為考試通水俾先生罰。
    keoi5 dei6 jan1 wai6 haau2 si3 tung1 seoi2 bei2 sin1 saang1 fat6.
    • They were punished by the teacher for tipping each other off in the examination.