Which to use
“und” is a conjunction and “usa” is a verb - they look or sound alike but fill different roles in a sentence.
- #29,551
- “und” frequency rank
- #1,103
- “usa” frequency rank
- 30654
- confusion score
Side-by-Side Comparison
| Feature | und | usa |
|---|---|---|
| Definition | (conjunção coordenativa) e. | terceira pessoa do singular do presente do indicativo do verbo usar |
Where the eye mixes und and usa
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: und vs usa
These two trip readers on the page rather than in the ear: und is /ʊnt/ while usa is /ˈu.zə/. 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 (conjunction vs verb), which is usually the fastest check. Our composite confusion score for this pair is 30654, derived from the frequency rank of both members and their visual similarity.
und is recorded at frequency rank #29,551, classified as aconj, pronounced /ʊnt/. usa is at rank #1,103, tagged as averb, pronounced /ˈu.zə/.
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 30654, this pair ranks #37,644 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of und vs usa
Shared letters: u. Private to "und": dn. Private to "usa": as.
"und" · 3 letters · shape VCC · "usa" · 3 letters · shape VCV
Frequently Asked Questions
Can "und" and "usa" be used interchangeably?
In ordinary Portuguese text, does "und" or "usa" show up more?
What to do next
Eye-level mix-up between "und" and "usa" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "und" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "usa" - compare definitions side by side with the headword page. Word entry
- This pair ranks #37,644 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "und" and "usa" also get mixed up with nearby pairs, the highest-scored neighbour is "ú vs und". Nearby pair
Confusion rank #37,644 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.