Which to use
“ser” is a pronoun and “su” is a verb - they look or sound alike but fill different roles in a sentence.
- #15,252
- “ser” frequency rank
- #1,609
- “su” frequency rank
- 16861
- confusion score
Side-by-Side Comparison
| Feature | ser | su |
|---|---|---|
| Definition | Que. | Participe passé masculin singulier du verbe savoir. |
Letter map: ser vs su
Shared letters muted; letters that set ser and su apart highlighted. Shared run: 1.
Part-of-speech tell for ser / su
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ser is apronoun and suaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 16861, derived from the frequency rank of both members and their visual similarity.
ser is recorded at frequency rank #15,252, classified as apron. su is at rank #1,609, tagged as averb, pronounced \sy\.
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 16861, this pair ranks #385,920 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of ser vs su
Shared letters: s. Private to "ser": er. Private to "su": u.
"ser" · 3 letters · shape CVC · "su" · 2 letters · shape CV
Frequently Asked Questions
Do "ser" and "su" mean the same thing in a sentence?
In ordinary French text, does "ser" or "su" show up more?
What to do next
Done with this confusable. These links stay specific to "ser" and "su".
- Full dictionary entry for "ser" 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 #385,920 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ser" and "su" also get mixed up with nearby pairs, the highest-scored neighbour is "ser vs suu". Nearby pair
Confusion rank #385,920 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.