réussiravsréussisTell them apart

Quick tell: réussira is a verb, réussis is an adjective, so they fill different roles in a sentence.

Which to use

“réussira” is a verb and “réussis” is an adjective - they look or sound alike but fill different roles in a sentence.

#21,762
“réussira” frequency rank
#12,048
“réussis” frequency rank
33810
confusion score

Side-by-Side Comparison

Feature réussira réussis
Definition Troisième personne du singulier du futur de réussir. Masculin pluriel de réussi.

Where the eye mixes réussira and réussis

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. réussira runs 8 letters (CVVCCVCV) against réussis's 7 (CVVCCVC) - the length gap alone is often enough to separate them once you know to check it.

8 ch
réussira
7 ch
réussis

Why the eye confuses réussira with réussis

These two trip readers on the page rather than in the ear: réussira is \ʁe.y.si.ʁa\ while réussis is \ʁe.y.si\. 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 (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 33810, derived from the frequency rank of both members and their visual similarity.

réussira is recorded at frequency rank #21,762, classified as averb, pronounced \ʁe.y.si.ʁa\. réussis is at rank #12,048, tagged as anadj, pronounced \ʁe.y.si\.

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 33810, this pair ranks #288,118 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of réussira vs réussis

Shared letters: irsué. Private to "réussira": a. Private to "réussis": -.

"réussira" · 8 letters · shape CVVCCVCV  ·  "réussis" · 7 letters · shape CVVCCVC

Frequently Asked Questions

Do "réussira" and "réussis" mean the same thing in a sentence?
No - they are not even the same part of speech. "réussira" is a verb and "réussis" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "réussira" or "réussis" show up more?
"réussis" is the more common of the two: it sits at frequency rank #12,048 in our French list, against #21,762 for "réussira". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "réussira" and "réussis" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "réussira" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "réussis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #288,118 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "réussira" and "réussis" also get mixed up with nearby pairs, the highest-scored neighbour is "reuss vs réussis". Nearby pair

Confusion rank #288,118 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