antrovsautoWhich spelling fits?

Which to use

“antro” and “auto” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#46,168
“antro” frequency rank
#1,421
“auto” frequency rank
47589
confusion score

Side-by-Side Comparison

Feature antro auto
Definition caverna profunda e assustadora solenidade; ação pública

Where the eye mixes antro and auto

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
antro
4 ch
auto

Why the eye confuses antro with auto

A purely visual mix-up. antro (/ˈɐ̃.tɾu/) and auto (/ˈaw.tu/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 47589, derived from the frequency rank of both members and their visual similarity.

antro is recorded at frequency rank #46,168, classified as anoun, pronounced /ˈɐ̃.tɾu/. auto is at rank #1,421, tagged as anoun, pronounced /ˈaw.tu/.

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 47589, this pair ranks #17,650 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of antro vs auto

Shared letters: aot. Private to "antro": nr. Private to "auto": u.

"antro" · 5 letters · shape VCCCV  ·  "auto" · 4 letters · shape VVCV

Known mistypes of this pair

  • antroanntro · anrto · antor · antrro · anttro · atnro · natro
  • autoatuo · auot · autto · uato

Frequently Asked Questions

Can "antro" and "auto" be used interchangeably?
No. They are said differently (/ˈɐ̃.tɾu/ versus /ˈaw.tu/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "antro" or "auto"?
"auto" is the more common of the two: it sits at frequency rank #1,421 in our Portuguese list, against #46,168 for "antro". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "antro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "auto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #17,650 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "antro" and "auto" also get mixed up with nearby pairs, the highest-scored neighbour is "antro vs atroz". 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 #17,650 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