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防空洞

Mandarin · pinyin fáng kōng dòng

air raid shelter; bomb shelter
(fig.) place that protects bad people; hideout

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Characters in this entry

防: fáng · defend; prevent; embankment
空: kōng · empty, hollow, bare, deserted
洞: dòng · cave, grotto; ravine; hole

Written characters and their own readings; the entry’s pronunciation is shown above.

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Mandarin tones

2–1–4 · fang2 kong1 dong4

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Read this spelling in Classical texts

Follow a written form into the eight pinned witnesses: Analects, Mencius, Laozi, Zhuangzi, Xunzi, Han Feizi, Sunzi and the Mao Shijing. A match is a place to investigate; it does not prove that a modern dictionary sense fits the passage.

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Compare dictionary sources Wiktionary · 2 senses · 1 Cantonese reading

Rime Cantonese 粵拼

fong4 hung1 dung6

Cantonese word readings for 防空洞. This lexicon supplies readings, not definitions.

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Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

noun

air-raid shelter
(figurative) hideout for evildoer; cover for wrong thoughts

Source page · dump 2026-09-02 · Contributors & history

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