AP vs at, What's the Difference?

Which to use

“AP” is an adjective and “at” is a preposition - they look or sound alike but fill different roles in a sentence.

#3,600
“AP” frequency rank: #21
“at” frequency rank: 3621
confusion score

Side-by-Side Comparison

Feature	AP	at
Definition	Initialism of all-purpose.	In, near, or in the general vicinity of (a particular place).

Letter map: AP vs at

Shared letters muted; letters that set AP and at apart highlighted. Shared run: 1.

2 ch

Grammar separator: AP vs at

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: AP is anadjective and atapreposition. On the page they differ by a single letter - p in “AP” becomes t in “at”. Our composite confusion score for this pair is 3621, derived from the frequency rank of both members and their visual similarity.

AP is recorded at frequency rank #3,600, classified as anadj. at is at rank #21, 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 3621, this pair ranks #521,542 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of AP vs at

Shared letters: a. Private to "AP": p. Private to "at": t.

"AP" · 2 letters · shape VC · "at" · 2 letters · shape VC

Frequently Asked Questions

Can "AP" and "at" be used interchangeably?

No - they are not even the same part of speech. "AP" is an adjective and "at" a preposition, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "AP" vs "at" - which ranks higher?

"at" is the more common of the two: it sits at frequency rank #21 in our English list, against #3,600 for "AP". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Done with this confusable. These links stay specific to "AP" and "at".

Full dictionary entry for "AP" 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 #521,542 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"AP" and "at" also get mixed up with nearby pairs, the highest-scored neighbour is "amb vs AP". Nearby pair

Confusion rank #521,542 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.