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Jyutping nyun5 seoi2 wu2
Pinyin nuǎn shuǐ hú

Definitions (CC-CANTO)
  1. (noun) a vacuum flask; a thermos bottle; a hot water bottle
Definitions (粵典–words.hk)
  1. 名詞
    暖壺​;​熱水壺​;​保温​壺​(​量​詞​:​個​)
    thermos bottle
Definitions (Wiktionary)
  1. noun
    thermos; vacuum flask (Classifier: 隻/只 m)
    (syn.) 電瓶, 電壺, 热水樽, 保溫杯, 保温杯, 滚水罐, 保温瓶, 电壶, 暖壶, 滾水罐, 保暖杯, 保溫瓶, 保溫樽, 滾水瓶, 熱水瓶, 水杯, 保温樽, 熱水壺, 电罐, 温罐, 暖水瓶, 溫水瓶, 滚水瓶, 暖壺, 热水壶, 電罐, 暖瓶, 熱水樽, 溫罐, 温水瓶, 热水瓶
Definitions (Kaifangcidian)
  1. 熱水瓶 – 热水瓶
Examples (粵典–words.hk)
  1. Cantonese
    呢个暖水壶用真空玻璃内胆,好保温㗎。
    呢個暖水壺用真空玻璃內膽,好保温㗎。
    ni1 go3 nyun5 seoi2 wu2 jung6 zan1 hung1 bo1 lei1 noi6 daam2, hou2 bou2 wan1 gaa3.
    • This thermal flask use vacuum glass inner chamber, really good at keeping warm.
  2. Cantonese
    暖水壶
    暖水壺
    • thermos bottle