Which to use
“aced” and “ACK” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #46,285
- “aced” frequency rank
- #33,924
- “ACK” frequency rank
- 80209
- confusion score
Side-by-Side Comparison
| Feature | aced | ACK |
|---|---|---|
| Definition | simple past and past participle of ace | To acknowledge a packet or a message received from a network. |
Letter map: aced vs ACK
Shared letters muted; letters that set aced and ACK apart highlighted. Shared run: 2. aced runs 4 letters (VCVC) against ACK's 3 (VCC) - the length gap alone is often enough to separate them once you know to check it.
Pair insight - aced / ACK
aced and ACK 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 80209, 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/. ACK is at rank #33,924, tagged as averb.
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 80209, this pair ranks #20,335 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of aced vs ACK
Shared letters: ac. Private to "aced": de. Private to "ACK": k.
"aced" · 4 letters · shape VCVC · "ACK" · 3 letters · shape VCC
Known mistypes of this pair
- aced ← acced · acde · acedd · aecd · caed
Frequently Asked Questions
Can "aced" and "ACK" be used interchangeably?
Frequency check: "aced" vs "ACK" - which ranks higher?
What to do next
Pair "aced" vs "ACK" is on the table, pick a follow-up below.
- Full dictionary entry for "aced" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ACK" - compare definitions side by side with the headword page. Word entry
- This pair ranks #20,335 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "aced" and "ACK" 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 #20,335 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.