窿

Tap the pinyin to hear it

cavity; hole

Sound it out + =

Formation & memory

Break the character into parts you already know.

Phono-semantic compound (形声字)

穴 meaning “hole” + 隆 sound ( lóng )

Components 穴隆

The most common words first — learning a character in context makes it stick.

Word	Pinyin	Meaning
大耳窿	dà ěr lóng	loan shark; usurer
窟窿眼	kū long yǎn	small hole
窟窿	kū long	hole; pocket; cavity; loophole; debt
穹窿	qióng lóng	a dome; a vault; the sky

Characters sharing the sound component 隆 — compare how they read.

Character	Pinyin	Meaning
隆 sound part	lóng	prosperous, plentiful, abundant
癃	lóng	weakness, infirmity; urine retention