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Jyutping dang1 loeng6
Pinyin dēng liàng

Definitions (Wiktionary)
  1. noun, colloquial
    lamplight; electric light
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    灯亮着。
    燈亮着。
    dēng liàng zhe 。
    • The light is on.
    • The light was on.