Which to use
“grosseur” is a noun and “grossir” is a verb - they look or sound alike but fill different roles in a sentence.
- #29,372
- “grosseur” frequency rank
- #12,790
- “grossir” frequency rank
- 42162
- confusion score
Side-by-Side Comparison
| Feature | grosseur | grossir |
|---|---|---|
| Definition | État de ce qui est gros. | Rendre gros, plus ample, plus volumineux. |
Where the eye mixes grosseur and grossir
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. grosseur runs 8 letters (CCVCCVVC) against grossir's 7 (CCVCCVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: grosseur vs grossir
These two trip readers on the page rather than in the ear: grosseur is \ɡʁɔ.sœʁ\ while grossir is \ɡʁɔ.siʁ\. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 42162, derived from the frequency rank of both members and their visual similarity.
grosseur is recorded at frequency rank #29,372, classified as anoun, pronounced \ɡʁɔ.sœʁ\. grossir is at rank #12,790, tagged as averb, pronounced \ɡʁɔ.siʁ\.
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 42162, this pair ranks #227,748 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of grosseur vs grossir
Shared letters: gors. Private to "grosseur": eu. Private to "grossir": i.
"grosseur" · 8 letters · shape CCVCCVVC · "grossir" · 7 letters · shape CCVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "grosseur" for "grossir" ever safe?
In ordinary French text, does "grosseur" or "grossir" show up more?
After this comparison
Eye-level mix-up between "grosseur" and "grossir" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "grosseur" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "grossir" - compare definitions side by side with the headword page. Word entry
- This pair ranks #227,748 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "grosseur" and "grossir" also get mixed up with nearby pairs, the highest-scored neighbour is "grossir vs grossis". 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 #227,748 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.