Which to use
“aero” and “aterro” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #29,208
- “aero” frequency rank
- #15,022
- “aterro” frequency rank
- 44230
- confusion score
Side-by-Side Comparison
| Feature | aero | aterro |
|---|---|---|
| Definition | ar, vento | ação ou efeito de aterrar |
Where the eye mixes aero and aterro
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. aero runs 4 letters (VVCV) against aterro's 6 (VCVCCV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: aero vs aterro
A purely visual mix-up. aero (/a.ˈɛ.rɔ/) and aterro (/ɐ.ˈte.Ru/) 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 2 letter(s) in length. Our composite confusion score for this pair is 44230, derived from the frequency rank of both members and their visual similarity.
aero is recorded at frequency rank #29,208, classified as anoun, pronounced /a.ˈɛ.rɔ/. aterro is at rank #15,022, tagged as anoun, pronounced /ɐ.ˈte.Ru/.
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 44230, this pair ranks #21,280 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of aero vs aterro
Shared letters: aeor. Private to "aero": -. Private to "aterro": t.
"aero" · 4 letters · shape VVCV · "aterro" · 6 letters · shape VCVCCV
Known mistypes of this pair
Frequently Asked Questions
Can "aero" and "aterro" be used interchangeably?
In ordinary Portuguese text, does "aero" or "aterro" show up more?
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 "aero" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aterro" - compare definitions side by side with the headword page. Word entry
- This pair ranks #21,280 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "aero" and "aterro" also get mixed up with nearby pairs, the highest-scored neighbour is "aero 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 #21,280 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.