Which to use
“Tsai” and “Tsu” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #39,620
- “Tsai” frequency rank
- #43,976
- “Tsu” frequency rank
- 83596
- confusion score
Side-by-Side Comparison
| Feature | Tsai | Tsu |
|---|---|---|
| Definition | A surname from Mandarin Chinese. | The capital city of Mie Prefecture, Japan. |
Letter map: Tsai vs Tsu
Shared letters muted; letters that set Tsai and Tsu apart highlighted. Shared run: 2. Tsai runs 4 letters (CCVV) against Tsu's 3 (CCV) - the length gap alone is often enough to separate them once you know to check it.
Spelling & dictionary notes on Tsai vs Tsu
Tsai and Tsu are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 83596, derived from the frequency rank of both members and their visual similarity.
Tsai is recorded at frequency rank #39,620, classified as aname. Tsu is at rank #43,976, tagged as aname.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 83596, this pair ranks #13,482 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of Tsai vs Tsu
Shared letters: st. Private to "Tsai": ai. Private to "Tsu": u.
"Tsai" · 4 letters · shape CCVV · "Tsu" · 3 letters · shape CCV
Known mistypes of this pair
- Tsai ← stai · tasi · tsia · tssai · ttsai
Frequently Asked Questions
Is swapping "Tsai" for "Tsu" ever safe?
Frequency check: "Tsai" vs "Tsu" - which ranks higher?
Useful next steps
Pair "Tsai" vs "Tsu" is on the table, pick a follow-up below.
- Full dictionary entry for "Tsai" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Tsu" - compare definitions side by side with the headword page. Word entry
- This pair ranks #13,482 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Tsai" and "Tsu" also get mixed up with nearby pairs, the highest-scored neighbour is "Taf vs Tsu". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #13,482 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.