Which to use
“odeon” and “onion” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #48,939
- “odeon” frequency rank
- #8,464
- “onion” frequency rank
- 57403
- confusion score
Side-by-Side Comparison
| Feature | odeon | onion |
|---|---|---|
| Definition | An ancient Greek or Roman building used for performances of music and poetry. | A monocotyledonous plant (Allium cepa), allied to garlic, used as vegetable and spice. |
Where the eye mixes odeon and onion
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses odeon with onion
A purely visual mix-up. odeon (/ˈəʊdɪən/) and onion (/ˈʌn.jən/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 57403, derived from the frequency rank of both members and their visual similarity.
odeon is recorded at frequency rank #48,939, classified as anoun, pronounced /ˈəʊdɪən/. onion is at rank #8,464, tagged as anoun, pronounced /ˈʌn.jən/.
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 57403, this pair ranks #119,506 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of odeon vs onion
Shared letters: no. Private to "odeon": de. Private to "onion": i.
"odeon" · 5 letters · shape VCVVC · "onion" · 5 letters · shape VCVVC
Known mistypes of this pair
Frequently Asked Questions
Do "odeon" and "onion" mean the same thing in a sentence?
Which is more common, "odeon" or "onion"?
What to do next
Eye-level mix-up between "odeon" and "onion" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "odeon" 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 #119,506 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "odeon" and "onion" also get mixed up with nearby pairs, the highest-scored neighbour is "odeon 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 #119,506 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.