Which to use
“act” is a verb and “at” is a preposition - they look or sound alike but fill different roles in a sentence.
- #9,948
- “act” frequency rank
- #1,457
- “at” frequency rank
- 11405
- confusion score
Side-by-Side Comparison
| Feature | act | at |
|---|---|---|
| Definition | agir | em, a |
Letter map: act vs at
Shared letters muted; letters that set act and at apart highlighted. Shared run: 2.
Grammar separator: act vs at
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: act is averb and atapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 11405, derived from the frequency rank of both members and their visual similarity.
act is recorded at frequency rank #9,948, classified as averb. 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 11405, this pair ranks #61,454 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of act vs at
Shared letters: at. Private to "act": c. Private to "at": -.
"act" · 3 letters · shape VCC · "at" · 2 letters · shape VC
Frequently Asked Questions
Can "act" and "at" be used interchangeably?
Which is more common, "act" or "at"?
Useful next steps
Done with this confusable. These links stay specific to "act" and "at".
- Full dictionary entry for "act" 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 #61,454 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "act" and "at" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs act". Nearby pair
Confusion rank #61,454 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.