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Jyutping hung4 gwong1
Pinyin hóng guāng

Definitions (Wiktionary)
  1. noun, literary
    ruddy glow (of the face)
  2. name
    Hongguang (a village in Yonglong, Jingshan, Jingmen, Hubei, China)
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    为什么对面楼的窗户里发出红光?
    為什麼對面樓的窗户裏發出紅光?
    wèi shén me duì miàn lóu de chuāng hu lǐ fā chū hóng guāng ?
    • Why is there a red light coming out the window in the building across?
Examples (Wiktionary)
  1. Mandarin
    可是我觉得你红光满面的,很可能是在走桃花运。
    可是我覺得你紅光滿面的,很可能是在走桃花運。
    kě shì wǒ jué de nǐ hóng guāng mǎn miàn de , hěn kě néng shì zài zǒu táo huā yùn .
    • But I think you look all flushed and radiant, which probably means you have been lucky in love.