maisvsmaskWhich spelling fits?

Quick tell: mais is a adverb, mask is a noun, so they fill different roles in a sentence.

Which to use

“mais” is an adverb and “mask” is a noun - they look or sound alike but fill different roles in a sentence.

#23
“mais” frequency rank
#36,537
“mask” frequency rank
36560
confusion score

Side-by-Side Comparison

Feature mais mask
Definition avançadamente (designa aumento) máscara

Where the eye mixes mais and mask

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
mais
4 ch
mask

Look-alike desk: mais vs mask

These two trip readers on the page rather than in the ear: mais is /mäjʃ/ while mask is /mæsk/. 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 (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 36560, derived from the frequency rank of both members and their visual similarity.

mais is recorded at frequency rank #23, classified as anadv, pronounced /mäjʃ/. mask is at rank #36,537, tagged as anoun, pronounced /mæsk/.

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 36560, this pair ranks #30,219 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of mais vs mask

Shared letters: ams. Private to "mais": i. Private to "mask": k.

"mais" · 4 letters · shape CVVC  ·  "mask" · 4 letters · shape CVCC

Known mistypes of this pair

  • maisamis · maiss · masi · mias · mmais
  • maskamsk · maks · maskk · massk · mmask · msak

Frequently Asked Questions

Is swapping "mais" for "mask" ever safe?
No - they are not even the same part of speech. "mais" is an adverb and "mask" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "mais" or "mask" show up more?
"mais" is the more common of the two: it sits at frequency rank #23 in our Portuguese list, against #36,537 for "mask". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Eye-level mix-up between "mais" and "mask" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "mais" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mask" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #30,219 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "mais" and "mask" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs mask". 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 #30,219 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