Which to use
“och” is a conjunction and “once” is a noun - they look or sound alike but fill different roles in a sentence.
- #49,829
- “och” frequency rank
- #11,815
- “once” frequency rank
- 61644
- confusion score
Side-by-Side Comparison
| Feature | och | once |
|---|---|---|
| Definition | Et. | 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. |
Letter map: och vs once
Shared letters muted; letters that set och and once apart highlighted. Shared run: 2. och runs 3 letters (VCC) against once's 4 (VCCV) - the length gap alone is often enough to separate them once you know to check it.
Role in the sentence - och and once
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: och is aconjunction and onceanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 61644, derived from the frequency rank of both members and their visual similarity.
och is recorded at frequency rank #49,829, classified as aconj. once is at rank #11,815, 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 61644, this pair ranks #91,191 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of och vs once
Shared letters: co. Private to "och": h. Private to "once": en.
"och" · 3 letters · shape VCC · "once" · 4 letters · shape VCCV
Known mistypes of this pair
- once ← ocne · oncce · onec · onnce
Frequently Asked Questions
Can "och" and "once" be used interchangeably?
Frequency check: "och" vs "once" - which ranks higher?
Useful next steps
You've compared "och" and "once". Here's where to go from here.
- Full dictionary entry for "och" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "once" - compare definitions side by side with the headword page. Word entry
- This pair ranks #91,191 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "och" and "once" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs oim". 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 #91,191 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.