Which to use
“once” and “oncles” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #11,815
- “once” frequency rank
- #21,098
- “oncles” frequency rank
- 32913
- confusion score
Side-by-Side Comparison
| Feature | once | oncles |
|---|---|---|
| Definition | Unité de mesure de la masse (système impérial britannique avoirdupois), qui vaut 28,3495231 grammes pour l'once commune → voir ounce. Ses symboles sont oz et ℥. L'once troy (troy ounce) équivaut pour sa part à 31,1034768 grammes. | Pluriel de oncle. |
Where the eye mixes once and oncles
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between once and oncles
A purely visual mix-up. once (\ɔ̃s\) and oncles (\ɔ̃kl\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 32913, derived from the frequency rank of both members and their visual similarity.
once is recorded at frequency rank #11,815, classified as anoun, pronounced \ɔ̃s\. oncles is at rank #21,098, tagged as anoun, pronounced \ɔ̃kl\.
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 32913, this pair ranks #294,129 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of once vs oncles
Shared letters: ceno. Private to "once": -. Private to "oncles": ls.
"once" · 4 letters · shape VCCV · "oncles" · 6 letters · shape VCCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "once" for "oncles" ever safe?
Frequency check: "once" vs "oncles" - which ranks higher?
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 "once" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "oncles" - compare definitions side by side with the headword page. Word entry
- This pair ranks #294,129 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "once" and "oncles" also get mixed up with nearby pairs, the highest-scored neighbour is "oncles vs ondulés". 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 #294,129 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.