Which to use
“aced” is a verb and “aud” is an adjective - they look or sound alike but fill different roles in a sentence.
- #46,285
- “aced” frequency rank
- #23,464
- “aud” frequency rank
- 69749
- confusion score
Side-by-Side Comparison
| Feature | aced | aud |
|---|---|---|
| Definition | simple past and past participle of ace | Alternative form of auld. |
Where the eye mixes aced and aud
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses aced with aud
These two trip readers on the page rather than in the ear: aced is /eɪst/ while aud is /əʊd/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 69749, derived from the frequency rank of both members and their visual similarity.
aced is recorded at frequency rank #46,285, classified as averb, pronounced /eɪst/. aud is at rank #23,464, tagged as anadj, pronounced /əʊd/.
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 69749, this pair ranks #53,293 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of aced vs aud
Shared letters: ad. Private to "aced": ce. Private to "aud": u.
"aced" · 4 letters · shape VCVC · "aud" · 3 letters · shape VVC
Known mistypes of this pair
- aced ← acced · acde · acedd · aecd · caed
Frequently Asked Questions
Is swapping "aced" for "aud" ever safe?
Frequency check: "aced" vs "aud" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "aced" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aud" - compare definitions side by side with the headword page. Word entry
- This pair ranks #53,293 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "aced" and "aud" also get mixed up with nearby pairs, the highest-scored neighbour is "aced vs ake". 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 #53,293 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.