Which to use
“ought” and “oust” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #3,966
- “ought” frequency rank
- #31,281
- “oust” frequency rank
- 35247
- confusion score
Side-by-Side Comparison
| Feature | ought | oust |
|---|---|---|
| Definition | simple past of owe | To expel; to remove. |
Where the eye mixes ought and oust
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses ought with oust
A purely visual mix-up. ought (/ɔːt/) and oust (/aʊst/) 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 35247, derived from the frequency rank of both members and their visual similarity.
ought is recorded at frequency rank #3,966, classified as averb, pronounced /ɔːt/. oust is at rank #31,281, tagged as averb, pronounced /aʊst/.
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 35247, this pair ranks #313,599 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ought vs oust
Shared letters: otu. Private to "ought": gh. Private to "oust": s.
"ought" · 5 letters · shape VVCCC · "oust" · 4 letters · shape VVCC
Known mistypes of this pair
Frequently Asked Questions
Can "ought" and "oust" be used interchangeably?
Frequency check: "ought" vs "oust" - which ranks higher?
Useful next steps
Eye-level mix-up between "ought" and "oust" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "ought" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "oust" - compare definitions side by side with the headword page. Word entry
- This pair ranks #313,599 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "ought" and "oust" also get mixed up with nearby pairs, the highest-scored neighbour is "oust vs OWS". 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 #313,599 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.