slowvssonWhich spelling fits?

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

Which to use

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

#20,855
“slow” frequency rank
#42
“son” frequency rank
20897
confusion score

Side-by-Side Comparison

Feature slow son
Definition Danse lente que les partenaires dansent enlacés. Troisième personne du sujet, objet masculin singulier.

Where the eye mixes slow and son

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

4 ch
slow
3 ch
son

Visual trap between slow and son

These two trip readers on the page rather than in the ear: slow is \slo\ while son is \sɔ̃\. 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 determiner), which is usually the fastest check. Our composite confusion score for this pair is 20897, derived from the frequency rank of both members and their visual similarity.

slow is recorded at frequency rank #20,855, classified as anoun, pronounced \slo\. 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 20897, this pair ranks #365,924 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of slow vs son

Shared letters: os. Private to "slow": lw. Private to "son": n.

"slow" · 4 letters · shape CCVC  ·  "son" · 3 letters · shape CVC

Known mistypes of this pair

  • slowlsow · sllow · sloww · slwo · solw · sslow

Frequently Asked Questions

Is swapping "slow" for "son" ever safe?
No - they are not even the same part of speech. "slow" is a noun and "son" a determiner, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "slow" or "son" show up more?
"son" is the more common of the two: it sits at frequency rank #42 in our French list, against #20,855 for "slow". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "slow" 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 #365,924 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "slow" and "son" also get mixed up with nearby pairs, the highest-scored neighbour is "seok vs slow". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #365,924 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