ser vs sy, What's the Difference?

Which to use

“ser” and “sy” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#15,252
“ser” frequency rank: #15,261
“sy” frequency rank: 30513
confusion score

Side-by-Side Comparison

Feature	ser	sy
Definition	Que.	Pronom personnel sujet féminin de la troisième personne du singulier : elle.

Letter map: ser vs sy

Shared letters muted; letters that set ser and sy apart highlighted. Shared run: 1.

3 ch

ser

2 ch

Corpus notes: ser and sy

ser and sy are indexed as a confusable French 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 30513, derived from the frequency rank of both members and their visual similarity.

ser is recorded at frequency rank #15,252, classified as apron. sy is at rank #15,261, tagged as apron, pronounced \səi\.

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 30513, this pair ranks #309,825 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ser vs sy

Shared letters: s. Private to "ser": er. Private to "sy": y.

"ser" · 3 letters · shape CVC · "sy" · 2 letters · shape CV

Frequently Asked Questions

Do "ser" and "sy" mean the same thing in a sentence?

No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Which is more common, "ser" or "sy"?

"ser" is the more common of the two: it sits at frequency rank #15,252 in our French list, against #15,261 for "sy". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "ser" and "sy".

Full dictionary entry for "ser" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "sy" - compare definitions side by side with the headword page. Word entry
This pair ranks #309,825 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"ser" and "sy" also get mixed up with nearby pairs, the highest-scored neighbour is "suu vs sy". Nearby pair

Confusion rank #309,825 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.