Which to use
“odor” and “odour” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #15,234
- “odor” frequency rank
- #30,518
- “odour” frequency rank
- 45752
- confusion score
Side-by-Side Comparison
| Feature | odor | odour |
|---|---|---|
| Definition | Any smell, whether fragrant or offensive. | British standard spelling of odor. |
Letter map: odor vs odour
Shared letters muted; letters that set odor and odour apart highlighted. Shared run: 4. odor runs 4 letters (VCVC) against odour's 5 (VCVVC) - the length gap alone is often enough to separate them once you know to check it.
Corpus notes: odor and odour
odor and odour are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 45752, derived from the frequency rank of both members and their visual similarity.
odor is recorded at frequency rank #15,234, classified as anoun, pronounced /ˈəʊdə/. odour is at rank #30,518, tagged as anoun.
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 45752, this pair ranks #218,272 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of odor vs odour
Shared letters: dor. Private to "odor": -. Private to "odour": u.
"odor" · 4 letters · shape VCVC · "odour" · 5 letters · shape VCVVC
Known mistypes of this pair
Frequently Asked Questions
Can "odor" and "odour" be used interchangeably?
Which is more common, "odor" or "odour"?
What to do next
You've compared "odor" and "odour". Here's where to go from here.
- Full dictionary entry for "odor" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "odour" - compare definitions side by side with the headword page. Word entry
- This pair ranks #218,272 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "odor" and "odour" also get mixed up with nearby pairs, the highest-scored neighbour is "odious vs odour". 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 #218,272 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.