Which to use
“ifs” is a noun and “isi” is a verb - they look or sound alike but fill different roles in a sentence.
- #47,386
- “ifs” frequency rank
- #49,170
- “isi” frequency rank
- 96556
- confusion score
Side-by-Side Comparison
| Feature | ifs | isi |
|---|---|---|
| Definition | Pluriel de if. | Deuxième personne du singulier du futur de l’indicatif du verbe isal/isañ. |
Where the eye mixes ifs and isi
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. ifs (VCC) and isi (VCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: ifs vs isi
These two trip readers on the page rather than in the ear: ifs is \if\ while isi is \ˈisːi\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 96556, derived from the frequency rank of both members and their visual similarity.
ifs is recorded at frequency rank #47,386, classified as anoun, pronounced \if\. 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 96556, this pair ranks #630 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of ifs vs isi
Shared letters: is. Private to "ifs": f. Private to "isi": -.
"ifs" · 3 letters · shape VCC · "isi" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "ifs" for "isi" ever safe?
Frequency check: "ifs" vs "isi" - which ranks higher?
Useful next steps
Eye-level mix-up between "ifs" and "isi" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "ifs" 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 #630 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ifs" and "isi" also get mixed up with nearby pairs, the highest-scored neighbour is "ime vs isi". Nearby pair
Confusion rank #630 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.