Which to use
“onion” and “onions” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #8,464
- “onion” frequency rank
- #9,928
- “onions” frequency rank
- 18392
- confusion score
Side-by-Side Comparison
| Feature | onion | onions |
|---|---|---|
| Definition | A monocotyledonous plant (Allium cepa), allied to garlic, used as vegetable and spice. | plural of onion |
Where the eye mixes onion and onions
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. onion runs 5 letters (VCVVC) against onions's 6 (VCVVCC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses onion with onions
A purely visual mix-up. onion (/ˈʌn.jən/) and onions (/ˈʌn.jənz/) 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 1 extra letter(s) - “onion” sits inside “onions”. Our composite confusion score for this pair is 18392, derived from the frequency rank of both members and their visual similarity.
onion is recorded at frequency rank #8,464, classified as anoun, pronounced /ˈʌn.jən/. onions is at rank #9,928, tagged as anoun, pronounced /ˈʌn.jənz/.
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 18392, this pair ranks #445,196 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of onion vs onions
Shared letters: ino. Private to "onion": -. Private to "onions": s.
"onion" · 5 letters · shape VCVVC · "onions" · 6 letters · shape VCVVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "onion" for "onions" ever safe?
Frequency check: "onion" vs "onions" - which ranks higher?
After this comparison
Eye-level mix-up between "onion" and "onions" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "onion" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "onions" - compare definitions side by side with the headword page. Word entry
- This pair ranks #445,196 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "onion" and "onions" also get mixed up with nearby pairs, the highest-scored neighbour is "onion vs Oxon". 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 #445,196 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.