Definition
窿 is a bound form (b.f.) — it rarely appears alone and is almost always part of a compound word. Its core meaning is 'hole' or 'cavity', and it is used in words like 窟窿 (kūlong, 'hole'), 穹窿 (qiónglóng, 'dome'), and 窿道 (lóngdào, 'mine tunnel'). You cannot use 窿 as a standalone noun; always pair it with another character.
b.f.
(bound form) holecavity(in mining) shafttunnel
Examples
- 。Tā de yīfu shàng yǒu gè kūlóng.There is a hole in his clothes.
- 窿。Zhè tiáo lóngdào tōng xiàng kuàngjǐng.This tunnel leads to the mine.
- 。Dì shàng yǒu yí gè dà kū lóng.There is a big hole in the ground.
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