Which to use
“effect” and “effort” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #20,129
- “effect” frequency rank
- #1,997
- “effort” frequency rank
- 22126
- confusion score
Side-by-Side Comparison
| Feature | effect | effort |
|---|---|---|
| Definition | Résultat, suite, aboutissement. | Action de s’efforcer. |
Where the eye mixes effect and effort
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Why the eye confuses effect with effort
A purely visual mix-up. effect (\ɪ.ˈfɛkt\) and effort (\e.fɔʁ\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 22126, derived from the frequency rank of both members and their visual similarity.
effect is recorded at frequency rank #20,129, classified as anoun, pronounced \ɪ.ˈfɛkt\. effort is at rank #1,997, tagged as anoun, pronounced \e.fɔʁ\.
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 22126, this pair ranks #359,707 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of effect vs effort
Shared letters: eft. Private to "effect": c. Private to "effort": or.
"effect" · 6 letters · shape VCCVCC · "effort" · 6 letters · shape VCCVCC
Known mistypes of this pair
Frequently Asked Questions
Can "effect" and "effort" be used interchangeably?
In ordinary French text, does "effect" or "effort" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "effect" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "effort" - compare definitions side by side with the headword page. Word entry
- This pair ranks #359,707 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "effect" and "effort" also get mixed up with nearby pairs, the highest-scored neighbour is "effect 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 #359,707 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.