All Words: Aku, haiku, puku, Baku, PKU, seppuku, Shikoku, bhikku, sodoku, Nusku, shinjuku, and mokushiroku
| Word | Length | Vowels | Syllables | |||
|---|---|---|---|---|---|---|
| Aku | 3 | 1 | 2 | 2 | Swedish | |
| Haiku | 5 | 2 | 3 | 2 | Japanese | |
| Puku | 4 | 2 | 2 | 2 | ||
| Baku | 4 | 2 | 2 | 2 | Russian | |
| PKU | 3 | 2 | 1 | 1 | ||
| Seppuku | 7 | 4 | 3 | 3 | Japanese | |
| Shikoku | 7 | 4 | 3 | 3 | Middle Chinese | |
| Bhikku | 6 | 4 | 2 | 2 | ||
| Sodoku | 6 | 3 | 3 | 3 | Japanese | |
| Nusku | 5 | 3 | 2 | 2 | ||
| Shinjuku | 8 | 5 | 3 | 3 | ||
| Mokushiroku | 11 | 6 | 5 | 5 |
Suffix: -ku. List of words that end in ku.

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