oddvsouldWhich spelling fits?

Which to use

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

#3,515
“odd” frequency rank
#48,397
“ould” frequency rank
51912
confusion score

Side-by-Side Comparison

Feature odd ould
Definition Differing from what is usual, ordinary or expected. Pronunciation spelling of old.

Where the eye mixes odd and ould

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
odd
4 ch
ould

Look-alike desk: odd vs ould

A purely visual mix-up. odd (/ɒd/) and ould (/aʊld/) 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 letter(s) in length. Our composite confusion score for this pair is 51912, derived from the frequency rank of both members and their visual similarity.

odd is recorded at frequency rank #3,515, classified as anadj, pronounced /ɒd/. ould is at rank #48,397, tagged as anadj, pronounced /aʊld/.

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 51912, this pair ranks #161,450 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of odd vs ould

Shared letters: do. Private to "odd": -. Private to "ould": lu.

"odd" · 3 letters · shape VCC  ·  "ould" · 4 letters · shape VVCC

Known mistypes of this pair

  • ouldoudl · ouldd · oulld · uold

Frequently Asked Questions

Can "odd" and "ould" be used interchangeably?
No. They are said differently (/ɒd/ versus /aʊld/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "odd" or "ould" show up more?
"odd" is the more common of the two: it sits at frequency rank #3,515 in our English list, against #48,397 for "ould". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Eye-level mix-up between "odd" and "ould" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "odd" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ould" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #161,450 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "odd" and "ould" also get mixed up with nearby pairs, the highest-scored neighbour is "oui vs ould". 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 #161,450 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