abavsatWhich spelling fits?

Quick tell: aba is a noun, at is a preposition, so they fill different roles in a sentence.

Which to use

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

#15,719
“aba” frequency rank
#1,457
“at” frequency rank
17176
confusion score

Side-by-Side Comparison

Feature aba at
Definition parte saliente da beira das vestimentas, ou outros materiais de pano, para uso das pessoas, tais como vestido, paletó, toldo etc em, a

Where the eye mixes aba and at

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
aba
2 ch
at

Visual trap between aba and at

These two trip readers on the page rather than in the ear: aba is /ˈa.bɐ/ while at is \æt\. 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 (noun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 17176, derived from the frequency rank of both members and their visual similarity.

aba is recorded at frequency rank #15,719, classified as anoun, pronounced /ˈa.bɐ/. 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 17176, this pair ranks #54,151 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aba vs at

Shared letters: a. Private to "aba": b. Private to "at": t.

"aba" · 3 letters · shape VCV  ·  "at" · 2 letters · shape VC

Frequently Asked Questions

Do "aba" and "at" mean the same thing in a sentence?
No - they are not even the same part of speech. "aba" is a noun and "at" a preposition, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "aba" vs "at" - which ranks higher?
"at" is the more common of the two: it sits at frequency rank #1,457 in our Portuguese list, against #15,719 for "aba". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "aba" 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 #54,151 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "aba" and "at" also get mixed up with nearby pairs, the highest-scored neighbour is "aba vs acs". Nearby pair

Confusion rank #54,151 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list