Which to use
“mo” is a pronoun and “mui” is an adverb - they look or sound alike but fill different roles in a sentence.
- #4,745
- “mo” frequency rank
- #23,741
- “mui” frequency rank
- 28486
- confusion score
Side-by-Side Comparison
| Feature | mo | mui |
|---|---|---|
| Definition | combinação de me (pronome pessoal oblíquo átono) e o (pronome pessoal oblíquo átono, pronome demonstrativo masculino ou pronome demonstrativo neutro) | em alto grau |
Where the eye mixes mo and mui
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between mo and mui
These two trip readers on the page rather than in the ear: mo is /mo/ while mui is /ˈmũj/. 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 (pronoun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 28486, derived from the frequency rank of both members and their visual similarity.
mo is recorded at frequency rank #4,745, classified as apron, pronounced /mo/. mui is at rank #23,741, tagged as anadv, pronounced /ˈmũj/.
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 28486, this pair ranks #40,324 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of mo vs mui
Shared letters: m. Private to "mo": o. Private to "mui": iu.
"mo" · 2 letters · shape CV · "mui" · 3 letters · shape CVV
Frequently Asked Questions
Is swapping "mo" for "mui" ever safe?
In ordinary Portuguese text, does "mo" or "mui" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "mo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "mui" - compare definitions side by side with the headword page. Word entry
- This pair ranks #40,324 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "mo" and "mui" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs mui". Nearby pair
Confusion rank #40,324 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.