selvssyWhat's the difference?

Quick tell: sel is a noun, sy is a pronoun, so they fill different roles in a sentence.

Which to use

“sel” is a noun and “sy” is a pronoun - they look or sound alike but fill different roles in a sentence.

#3,293
“sel” frequency rank
#15,261
“sy” frequency rank
18554
confusion score

Side-by-Side Comparison

Feature sel sy
Definition Nom courant du chlorure de sodium, composé ionique, friable, soluble dans l’eau, que l’on extrait de la mer, de sources salées, de mines, et dont on se sert surtout pour assaisonner et conserver les aliments. Pronom personnel sujet féminin de la troisième personne du singulier : elle.

Where the eye mixes sel and sy

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
sel
2 ch
sy

Look-alike desk: sel vs sy

These two trip readers on the page rather than in the ear: sel is \sɛl\ while sy is \səi\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 18554, derived from the frequency rank of both members and their visual similarity.

sel is recorded at frequency rank #3,293, classified as anoun, pronounced \sɛl\. 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 18554, this pair ranks #377,731 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sel vs sy

Shared letters: s. Private to "sel": el. Private to "sy": y.

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

Frequently Asked Questions

Is swapping "sel" for "sy" ever safe?
No - they are not even the same part of speech. "sel" is a noun and "sy" a pronoun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "sel" or "sy" show up more?
"sel" is the more common of the two: it sits at frequency rank #3,293 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.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "sel" 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 #377,731 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sel" and "sy" also get mixed up with nearby pairs, the highest-scored neighbour is "suu vs sy". Nearby pair

Confusion rank #377,731 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list