Which to use
“souterrain” and “souterraines” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #12,673
- “souterrain” frequency rank
- #18,325
- “souterraines” frequency rank
- 30998
- confusion score
Side-by-Side Comparison
| Feature | souterrain | souterraines |
|---|---|---|
| Definition | Qui est sous terre. | Féminin pluriel de souterrain. |
Where the eye mixes souterrain and souterraines
Muted = shared; highlighted = the visual trap. They share 10 letters in sequence.
Why the eye confuses souterrain with souterraines
A purely visual mix-up. souterrain (\su.tɛ.ʁɛ̃\) and souterraines (\su.tɛ.ʁɛn\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 extra letter(s) - “souterrain” sits inside “souterraines”. Our composite confusion score for this pair is 30998, derived from the frequency rank of both members and their visual similarity.
souterrain is recorded at frequency rank #12,673, classified as anadj, pronounced \su.tɛ.ʁɛ̃\. souterraines is at rank #18,325, tagged as anadj, pronounced \su.tɛ.ʁɛn\.
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 30998, this pair ranks #306,660 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of souterrain vs souterraines
Shared letters: aeinorstu. Private to "souterrain": -. Private to "souterraines": -.
"souterrain" · 10 letters · shape CVVCVCCVVC · "souterraines" · 12 letters · shape CVVCVCCVVCVC
Known mistypes of this pair
- souterrain ← osuterrain · sotuerrain · souetrrain · souterain · souterarin · souterrainn · souterrani · souterrian
- souterraines ← osuterraines · sotuerraines · souetrraines · souteraines · souterarines · souterraiens · souterrainess · souterrainnes
Frequently Asked Questions
Is swapping "souterrain" for "souterraines" ever safe?
In ordinary French text, does "souterrain" or "souterraines" show up more?
After this comparison
Eye-level mix-up between "souterrain" and "souterraines" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "souterrain" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "souterraines" - compare definitions side by side with the headword page. Word entry
- This pair ranks #306,660 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "souterrain" and "souterraines" also get mixed up with nearby pairs, the highest-scored neighbour is "souterraines vs souveraines". 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 #306,660 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.