maiúsculovsmúsculoWhich spelling fits?

Quick tell: maiúsculo is a adjective, músculo is a noun, so they fill different roles in a sentence.

Which to use

“maiúsculo” is an adjective and “músculo” is a noun - they look or sound alike but fill different roles in a sentence.

#36,531
“maiúsculo” frequency rank
#10,216
“músculo” frequency rank
46747
confusion score

Side-by-Side Comparison

Feature maiúsculo músculo
Definition diz-se dos caracteres maiores do alfabeto, usados no início dos nomes próprios e das frases: órgão constituído por tecido muscular

Letter map: maiúsculo vs músculo

Shared letters muted; letters that set maiúsculo and músculo apart highlighted. Shared run: 7. maiúsculo runs 9 letters (CVVVCCVCV) against músculo's 7 (CVCCVCV) - the length gap alone is often enough to separate them once you know to check it.

9 ch
maiúsculo
7 ch
músculo

Part-of-speech tell for maiúsculo / músculo

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: maiúsculo is anadjective and músculoanoun. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 46747, derived from the frequency rank of both members and their visual similarity.

maiúsculo is recorded at frequency rank #36,531, classified as anadj. músculo is at rank #10,216, tagged as anoun, pronounced /ˈmuʃ.ku.lu/.

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 46747, this pair ranks #18,564 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of maiúsculo vs músculo

Shared letters: clmosuú. Private to "maiúsculo": ai. Private to "músculo": -.

"maiúsculo" · 9 letters · shape CVVVCCVCV  ·  "músculo" · 7 letters · shape CVCCVCV

Frequently Asked Questions

Can "maiúsculo" and "músculo" be used interchangeably?
No - they are not even the same part of speech. "maiúsculo" is an adjective and "músculo" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "maiúsculo" or "músculo" show up more?
"músculo" is the more common of the two: it sits at frequency rank #10,216 in our Portuguese list, against #36,531 for "maiúsculo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "maiúsculo" vs "músculo" is on the table, pick a follow-up below.

  • Full dictionary entry for "maiúsculo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "músculo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #18,564 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "maiúsculo" and "músculo" also get mixed up with nearby pairs, the highest-scored neighbour is "maiúsculo vs minúsculo". Nearby pair

Confusion rank #18,564 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list