demeanorvsdemeanourWhich spelling fits?

Which to use

“demeanor” and “demeanour” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#22,346
“demeanor” frequency rank
#40,650
“demeanour” frequency rank
62996
confusion score

Side-by-Side Comparison

Feature demeanor demeanour
Definition The social, non-verbal behaviors (such as body language and facial expressions) that are characteristic of a person. UK, Australia, New Zealand, Ireland, and Commonwealth spelling of demeanor.

Letter map: demeanor vs demeanour

Shared letters muted; letters that set demeanor and demeanour apart highlighted. Shared run: 8. demeanor runs 8 letters (CVCVVCVC) against demeanour's 9 (CVCVVCVVC) - the length gap alone is often enough to separate them once you know to check it.

8 ch
demeanor
9 ch
demeanour

Corpus notes: demeanor and demeanour

demeanor and demeanour 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 62996, derived from the frequency rank of both members and their visual similarity.

demeanor is recorded at frequency rank #22,346, classified as anoun, pronounced /dɪˈmiːnə(ɹ)/. demeanour is at rank #40,650, 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 62996, this pair ranks #85,436 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of demeanor vs demeanour

Shared letters: ademnor. Private to "demeanor": -. Private to "demeanour": u.

"demeanor" · 8 letters · shape CVCVVCVC  ·  "demeanour" · 9 letters · shape CVCVVCVVC

Known mistypes of this pair

  • demeanor ← ddemeanor · deemanor · demaenor · demeannor · demeanorr · demeanro · demeaonr · demenaor
  • demeanour ← ddemeanour · deemanour · demaenour · demeannour · demeanoru · demeanourr · demeanuor · demeaonur

Frequently Asked Questions

Is swapping "demeanor" for "demeanour" ever safe?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Which is more common, "demeanor" or "demeanour"?
"demeanor" is the more common of the two: it sits at frequency rank #22,346 in our English list, against #40,650 for "demeanour". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "demeanor" vs "demeanour" is on the table, pick a follow-up below.

  • Full dictionary entry for "demeanor" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "demeanour" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #85,436 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "demeanor" and "demeanour" also get mixed up with nearby pairs, the highest-scored neighbour is "demean vs demeanor". 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 #85,436 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list