Which to use
“mui” is an adverb and “must” is a noun - they look or sound alike but fill different roles in a sentence.
- #23,741
- “mui” frequency rank
- #17,586
- “must” frequency rank
- 41327
- confusion score
Side-by-Side Comparison
| Feature | mui | must |
|---|---|---|
| Definition | em alto grau | algo necessário, geralmente por estar na moda, por ser muito popular ou básico |
Letter map: mui vs must
Shared letters muted; letters that set mui and must apart highlighted. Shared run: 2.
Part-of-speech tell for mui / must
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: mui is anadverb and mustanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 41327, derived from the frequency rank of both members and their visual similarity.
mui is recorded at frequency rank #23,741, classified as anadv, pronounced /ˈmũj/. must is at rank #17,586, tagged as anoun.
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 41327, this pair ranks #24,595 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of mui vs must
Shared letters: mu. Private to "mui": i. Private to "must": st.
"mui" · 3 letters · shape CVV · "must" · 4 letters · shape CVCC
Known mistypes of this pair
- must ← mmust · msut · musst · mustt · muts · umst
Frequently Asked Questions
Do "mui" and "must" mean the same thing in a sentence?
Frequency check: "mui" vs "must" - which ranks higher?
After this comparison
Done with this confusable. These links stay specific to "mui" and "must".
- Full dictionary entry for "mui" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "must" - compare definitions side by side with the headword page. Word entry
- This pair ranks #24,595 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "mui" and "must" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs mui". 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 #24,595 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.