Which to use
“alt” is an adjective and “asa” is a noun - they look or sound alike but fill different roles in a sentence.
- #21,650
- “alt” frequency rank
- #7,104
- “asa” frequency rank
- 28754
- confusion score
Side-by-Side Comparison
| Feature | alt | asa |
|---|---|---|
| Definition | velho | membro de um animal que serve para o voo |
Where the eye mixes alt and asa
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses alt with asa
These two trip readers on the page rather than in the ear: alt is /alt/ while asa is /ˈa.zɐ/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 28754, derived from the frequency rank of both members and their visual similarity.
alt is recorded at frequency rank #21,650, classified as anadj, pronounced /alt/. asa is at rank #7,104, tagged as anoun, pronounced /ˈa.zɐ/.
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 28754, this pair ranks #40,037 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of alt vs asa
Shared letters: a. Private to "alt": lt. Private to "asa": s.
"alt" · 3 letters · shape VCC · "asa" · 3 letters · shape VCV
Frequently Asked Questions
Can "alt" and "asa" be used interchangeably?
Frequency check: "alt" vs "asa" - which ranks higher?
Useful next steps
Eye-level mix-up between "alt" and "asa" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "alt" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "asa" - compare definitions side by side with the headword page. Word entry
- This pair ranks #40,037 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "alt" and "asa" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs alt". Nearby pair
Confusion rank #40,037 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.