Which to use
“effectif” is an adjective and “effectua” is a verb - they look or sound alike but fill different roles in a sentence.
- #4,327
- “effectif” frequency rank
- #49,625
- “effectua” frequency rank
- 53952
- confusion score
Side-by-Side Comparison
| Feature | effectif | effectua |
|---|---|---|
| Definition | Qui produit un effet réel. | Troisième personne du singulier du passé simple de effectuer. |
Where the eye mixes effectif and effectua
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Look-alike desk: effectif vs effectua
These two trip readers on the page rather than in the ear: effectif is \e.fɛk.tif\ while effectua is \e.fɛk.tɥa\. 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 (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 53952, derived from the frequency rank of both members and their visual similarity.
effectif is recorded at frequency rank #4,327, classified as anadj, pronounced \e.fɛk.tif\. effectua is at rank #49,625, tagged as averb, pronounced \e.fɛk.tɥa\.
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 53952, this pair ranks #137,333 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of effectif vs effectua
Shared letters: ceft. Private to "effectif": i. Private to "effectua": au.
"effectif" · 8 letters · shape VCCVCCVC · "effectua" · 8 letters · shape VCCVCCVV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "effectif" for "effectua" ever safe?
Frequency check: "effectif" vs "effectua" - which ranks higher?
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 "effectif" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "effectua" - compare definitions side by side with the headword page. Word entry
- This pair ranks #137,333 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "effectif" and "effectua" also get mixed up with nearby pairs, the highest-scored neighbour is "effects vs effectua". 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 #137,333 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.