Which to use
“san” and “su” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,148
- “san” frequency rank
- #8,094
- “su” frequency rank
- 9242
- confusion score
Side-by-Side Comparison
| Feature | san | su |
|---|---|---|
| Definition | An Ancient Greek letter representing /s/ (uppercase Ϻ, lowercase ϻ), originally used in some dialects instead of sigma. | Alternative form of xu (“former Vietnamese currency”). |
Letter map: san vs su
Shared letters muted; letters that set san and su apart highlighted. Shared run: 1.
Pair insight - san / su
san and su 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 9242, derived from the frequency rank of both members and their visual similarity.
san is recorded at frequency rank #1,148, classified as anoun, pronounced /ˈsæn/. su is at rank #8,094, tagged as anoun.
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 9242, this pair ranks #498,381 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of san vs su
Shared letters: s. Private to "san": an. Private to "su": u.
"san" · 3 letters · shape CVC · "su" · 2 letters · shape CV
Frequently Asked Questions
Do "san" and "su" mean the same thing in a sentence?
In ordinary English text, does "san" or "su" show up more?
Useful next steps
Done with this confusable. These links stay specific to "san" and "su".
- Full dictionary entry for "san" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "su" - compare definitions side by side with the headword page. Word entry
- This pair ranks #498,381 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "san" and "su" also get mixed up with nearby pairs, the highest-scored neighbour is "su vs sura". Nearby pair
Confusion rank #498,381 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.