Which to use
“IIIe” is an adjective and “isi” is a verb - they look or sound alike but fill different roles in a sentence.
- #17,973
- “IIIe” frequency rank
- #49,170
- “isi” frequency rank
- 67143
- confusion score
Side-by-Side Comparison
| Feature | IIIe | isi |
|---|---|---|
| Definition | Troisième. | Deuxième personne du singulier du futur de l’indicatif du verbe isal/isañ. |
Where the eye mixes IIIe and isi
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. IIIe runs 4 letters (VVVV) against isi's 3 (VCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between IIIe and isi
These two trip readers on the page rather than in the ear: IIIe is \tʁwa.zjɛm\ while isi is \ˈisːi\. 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 (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 67143, derived from the frequency rank of both members and their visual similarity.
IIIe is recorded at frequency rank #17,973, classified as anadj, pronounced \tʁwa.zjɛm\. isi is at rank #49,170, tagged as averb, pronounced \ˈisːi\.
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 67143, this pair ranks #64,693 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of IIIe vs isi
Shared letters: i. Private to "IIIe": e. Private to "isi": s.
"IIIe" · 4 letters · shape VVVV · "isi" · 3 letters · shape VCV
Known mistypes of this pair
- IIIe ← iiei
Frequently Asked Questions
Can "IIIe" and "isi" be used interchangeably?
Frequency check: "IIIe" vs "isi" - which ranks higher?
After this comparison
Eye-level mix-up between "IIIe" and "isi" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "IIIe" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "isi" - compare definitions side by side with the headword page. Word entry
- This pair ranks #64,693 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "IIIe" and "isi" also get mixed up with nearby pairs, the highest-scored neighbour is "ime vs isi". 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 #64,693 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.