Which to use
“son” is a determiner and “sou” is a noun - they look or sound alike but fill different roles in a sentence.
- #42
- “son” frequency rank
- #10,242
- “sou” frequency rank
- 10284
- confusion score
Side-by-Side Comparison
| Feature | son | sou |
|---|---|---|
| Definition | Troisième personne du sujet, objet masculin singulier. | Monnaie d’or médiévale, dérivant du solidus romain. |
Where the eye mixes son and sou
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: son is \sɔ̃\ while sou is \su\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - n in “son” becomes u in “sou”, and the parts of speech differ too (determiner vs noun), which is usually the fastest check. Our composite confusion score for this pair is 10284, derived from the frequency rank of both members and their visual similarity.
son is recorded at frequency rank #42, classified as adet, pronounced \sɔ̃\. sou is at rank #10,242, tagged as anoun, pronounced \su\.
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 10284, this pair ranks #413,569 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of son vs sou
Shared letters: os. Private to "son": n. Private to "sou": u.
"son" · 3 letters · shape CVC · "sou" · 3 letters · shape CVV
Frequently Asked Questions
Can "son" and "sou" be used interchangeably?
Which is more common, "son" or "sou"?
What to do next
You've compared "son" and "sou". Here's where to go from here.
- Full dictionary entry for "son" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sou" - compare definitions side by side with the headword page. Word entry
- This pair ranks #413,569 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "son" and "sou" also get mixed up with nearby pairs, the highest-scored neighbour is "sou vs suu". Nearby pair
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.