Which to use
“ach” is an intj and “at” is a preposition - they look or sound alike but fill different roles in a sentence.
- #48,212
- “ach” frequency rank
- #1,457
- “at” frequency rank
- 49669
- confusion score
Side-by-Side Comparison
| Feature | ach | at |
|---|---|---|
| Definition | oh | em, a |
Letter map: ach vs at
Shared letters muted; letters that set ach and at apart highlighted. Shared run: 1.
Grammar separator: ach vs at
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ach is anintj and atapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 49669, derived from the frequency rank of both members and their visual similarity.
ach is recorded at frequency rank #48,212, classified as anintj. at is at rank #1,457, tagged as aprep, pronounced \æt\.
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 49669, this pair ranks #15,315 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of ach vs at
Shared letters: a. Private to "ach": ch. Private to "at": t.
"ach" · 3 letters · shape VCC · "at" · 2 letters · shape VC
Frequently Asked Questions
Can "ach" and "at" be used interchangeably?
Which is more common, "ach" or "at"?
Useful next steps
You've compared "ach" and "at". Here's where to go from here.
- Full dictionary entry for "ach" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "at" - compare definitions side by side with the headword page. Word entry
- This pair ranks #15,315 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "ach" and "at" also get mixed up with nearby pairs, the highest-scored neighbour is "ach vs acs". Nearby pair
Confusion rank #15,315 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.