Which to use
“oni” is a pronoun and “onion” is a noun - they look or sound alike but fill different roles in a sentence.
- #49,618
- “oni” frequency rank
- #45,507
- “onion” frequency rank
- 95125
- confusion score
Side-by-Side Comparison
| Feature | oni | onion |
|---|---|---|
| Definition | pronome pessoal do caso nominativo da terceira pessoa do plural de gênero masculino pessoal, eles | cebola |
Letter map: oni vs onion
Shared letters muted; letters that set oni and onion apart highlighted. Shared run: 3.
Role in the sentence - oni and onion
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: oni is apronoun and onionanoun. On the page they differ by 2 extra letter(s) - “oni” sits inside “onion”. Our composite confusion score for this pair is 95125, derived from the frequency rank of both members and their visual similarity.
oni is recorded at frequency rank #49,618, classified as apron. onion is at rank #45,507, tagged as anoun, pronounced /ˈʌnjən/.
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 95125, this pair ranks #74 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of oni vs onion
Shared letters: ino. Private to "oni": -. Private to "onion": -.
"oni" · 3 letters · shape VCV · "onion" · 5 letters · shape VCVVC
Known mistypes of this pair
- onion ← noion · oinon · onino · onionn · onnion · onoin
Frequently Asked Questions
Do "oni" and "onion" mean the same thing in a sentence?
Frequency check: "oni" vs "onion" - which ranks higher?
Useful next steps
You've compared "oni" and "onion". Here's where to go from here.
- Full dictionary entry for "oni" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "onion" - compare definitions side by side with the headword page. Word entry
- This pair ranks #74 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "oni" and "onion" also get mixed up with nearby pairs, the highest-scored neighbour is "oni vs ons". 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 #74 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.