Which to use
“isla” is a noun and “iss” is a verb - they look or sound alike but fill different roles in a sentence.
- #36,015
- “isla” frequency rank
- #22,303
- “iss” frequency rank
- 58318
- confusion score
Side-by-Side Comparison
| Feature | isla | iss |
|---|---|---|
| Definition | Île. | Deuxième personne du singulier de l’impératif présent de essen. |
Where the eye mixes isla and iss
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses isla with iss
These two trip readers on the page rather than in the ear: isla is \ˈis.la\ while iss is \ɪs\. 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 58318, derived from the frequency rank of both members and their visual similarity.
isla is recorded at frequency rank #36,015, classified as anoun, pronounced \ˈis.la\. iss is at rank #22,303, tagged as averb, pronounced \ɪs\.
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 58318, this pair ranks #109,790 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of isla vs iss
Shared letters: is. Private to "isla": al. Private to "iss": -.
"isla" · 4 letters · shape VCCV · "iss" · 3 letters · shape VCC
Known mistypes of this pair
- isla ← isal · islla · issla · sila
Frequently Asked Questions
Can "isla" and "iss" be used interchangeably?
Which is more common, "isla" or "iss"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "isla" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "iss" - compare definitions side by side with the headword page. Word entry
- This pair ranks #109,790 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "isla" and "iss" also get mixed up with nearby pairs, the highest-scored neighbour is "isi vs isla". 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 #109,790 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.