Japanese symbol for “cavity”
空洞
くうどう
Romaji: kuudou
cavity; hollow; cave; cavern
In Japanese, cavity is 空洞, read くうどう (kuudou).
Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.
Meanings
- n cavity; hollow; cave; cavern
- adj-no hollow
Written forms: 空洞、空胴. Readings: くうどう.
Kanji and stroke order
Other Japanese words for “cavity”
| Word | Reading | Meaning |
|---|---|---|
| 洞 | ほら hora | hollow; cavity; hole |
| 穴 | あな ana | pit; hollow; cavity |
| 凹み | くぼみ kubomi | hollow; cavity; dent |
| 虚ろ | うつろ utsuro | cavity; hollow; void |
| 腔 | こう kou | cavity |
Related words
Words that share a kanji.
| Word | Reading | Meaning |
|---|---|---|
| 空気 | くうき kuuki | air; atmosphere |
| 空港 | くうこう kuukou | airport |
| 空間 | くうかん kuukan | space; room; airspace |
| 航空 | こうくう koukuu | aviation; flying |
| 航空機 | こうくうき koukuuki | aircraft |
| 空中 | くうちゅう kuuchuu | (in) the air; midair; sky |
| 洞窟 | どうくつ doukutsu | cave; cavern; grotto |
| 洞察 | どうさつ dousatsu | discernment; insight |
See also: Chinese symbol for “cavity”.
Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.