solvssonWhat's the difference?

Quick tell: sol is a noun, son is a determiner, so they fill different roles in a sentence.

Which to use

“sol” is a noun and “son” is a determiner - they look or sound alike but fill different roles in a sentence.

#833
“sol” frequency rank
#42
“son” frequency rank
875
confusion score

Side-by-Side Comparison

Feature sol son
Definition Cinquième note de la gamme. Troisième personne du sujet, objet masculin singulier.

Where the eye mixes sol and son

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
sol
3 ch
son

Why the eye confuses sol with son

These two trip readers on the page rather than in the ear: sol is \sɔl\ while son is \sɔ̃\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - l in “sol” becomes n in “son”, and the parts of speech differ too (noun vs determiner), which is usually the fastest check. Our composite confusion score for this pair is 875, derived from the frequency rank of both members and their visual similarity.

sol is recorded at frequency rank #833, classified as anoun, pronounced \sɔl\. son is at rank #42, tagged as adet, pronounced \sɔ̃\.

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 875, this pair ranks #438,976 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sol vs son

Shared letters: os. Private to "sol": l. Private to "son": n.

"sol" · 3 letters · shape CVC  ·  "son" · 3 letters · shape CVC

Frequently Asked Questions

Can "sol" and "son" be used interchangeably?
No - they are not even the same part of speech. "sol" is a noun and "son" a determiner, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sol" or "son"?
"son" is the more common of the two: it sits at frequency rank #42 in our French list, against #833 for "sol". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "sol" and "son" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "sol" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "son" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #438,976 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sol" and "son" also get mixed up with nearby pairs, the highest-scored neighbour is "sol vs suu". Nearby pair

Confusion rank #438,976 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