Which to use
“frontier” is an adjective and “frontières” is a noun - they look or sound alike but fill different roles in a sentence.
- #45,623
- “frontier” frequency rank
- #2,777
- “frontières” frequency rank
- 48400
- confusion score
Side-by-Side Comparison
| Feature | frontier | frontières |
|---|---|---|
| Definition | Frontalier, limitrophe. | Pluriel de frontière. |
Letter map: frontier vs frontières
Shared letters muted; letters that set frontier and frontières apart highlighted. Shared run: 7.
Role in the sentence - frontier and frontières
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: frontier is anadjective and frontièresanoun. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 48400, derived from the frequency rank of both members and their visual similarity.
frontier is recorded at frequency rank #45,623, classified as anadj. frontières is at rank #2,777, tagged as anoun, pronounced \fʁɔ̃.tjɛʁ\.
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 48400, this pair ranks #179,241 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of frontier vs frontières
Shared letters: efinort. Private to "frontier": -. Private to "frontières": sè.
"frontier" · 8 letters · shape CCVCCVVC · "frontières" · 10 letters · shape CCVCCVVCVC
Known mistypes of this pair
- frontier ← ffrontier · forntier · frnotier · froniter · fronntier · fronteir · frontierr · frontire
Frequently Asked Questions
Is swapping "frontier" for "frontières" ever safe?
In ordinary French text, does "frontier" or "frontières" show up more?
After this comparison
Done with this confusable. These links stay specific to "frontier" and "frontières".
- Full dictionary entry for "frontier" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "frontières" - compare definitions side by side with the headword page. Word entry
- This pair ranks #179,241 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "frontier" and "frontières" also get mixed up with nearby pairs, the highest-scored neighbour is "Fortier vs frontier". 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 #179,241 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.