Which to use
“once” and “onces” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #11,815
- “once” frequency rank
- #42,500
- “onces” frequency rank
- 54315
- confusion score
Side-by-Side Comparison
| Feature | once | onces |
|---|---|---|
| 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 once. |
Where the spellings diverge
Shared letters are muted; the letters that actually set once and onces apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
once and onces form a confusable pair in the French index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 extra letter(s) - “once” sits inside “onces” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 54315, 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\. onces is at rank #42,500, tagged as anoun, pronounced \ɔ̃s\.
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 54315, this pair ranks #134,855 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "once" and "onces" be used interchangeably?
Remembering once vs onces
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “once” entry
- Browse more pairs most likely to be confused. Most confusable