ilsvsirisWhich spelling fits?

Quick tell: ils is a pronoun, iris is a noun, so they fill different roles in a sentence.

Which to use

“ils” is a pronoun and “iris” is a noun - they look or sound alike but fill different roles in a sentence.

#54
“ils” frequency rank
#9,504
“iris” frequency rank
9558
confusion score

Side-by-Side Comparison

Feature ils iris
Definition Pronom clitique de la troisième personne du pluriel sujet, quand on parle d’un groupe d’hommes et de femmes ou de choses grammaticalement masculines et féminines. Partie colorée de l’œil qui environne la prunelle et qui présente quelquefois des nuances circulaires et concentriques.

Where the eye mixes ils and iris

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
ils
4 ch
iris

Visual trap between ils and iris

These two trip readers on the page rather than in the ear: ils is \il\ while iris is \i.ʁis\. 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 (pronoun vs noun), which is usually the fastest check. Our composite confusion score for this pair is 9558, derived from the frequency rank of both members and their visual similarity.

ils is recorded at frequency rank #54, classified as apron, pronounced \il\. iris is at rank #9,504, tagged as anoun, pronounced \i.ʁis\.

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 9558, this pair ranks #416,233 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ils vs iris

Shared letters: is. Private to "ils": l. Private to "iris": r.

"ils" · 3 letters · shape VCC  ·  "iris" · 4 letters · shape VCVC

Known mistypes of this pair

  • irisiirs · iriss · irris · irsi · riis

Frequently Asked Questions

Can "ils" and "iris" be used interchangeably?
No - they are not even the same part of speech. "ils" is a pronoun and "iris" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ils" vs "iris" - which ranks higher?
"ils" is the more common of the two: it sits at frequency rank #54 in our French list, against #9,504 for "iris". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "ils" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "iris" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #416,233 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ils" and "iris" also get mixed up with nearby pairs, the highest-scored neighbour is "iris 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 #416,233 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list