malvsmarWhich spelling fits?

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

Which to use

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

#319
“mal” frequency rank
#828
“mar” frequency rank
1147
confusion score

Side-by-Side Comparison

Feature mal mar
Definition de forma pouco satisfatória grande quantidade de água salgada que cobre parte do planeta Terra, podendo estar localizada junto ou dentro de continentes

Where the eye mixes mal and mar

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
mal
3 ch
mar

Why the eye confuses mal with mar

These two trip readers on the page rather than in the ear: mal is /ˈmaw/ while mar is /ˈmaɾ/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - l in “mal” becomes r in “mar”, and the parts of speech differ too (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 1147, derived from the frequency rank of both members and their visual similarity.

mal is recorded at frequency rank #319, classified as anadv, pronounced /ˈmaw/. mar is at rank #828, tagged as anoun, pronounced /ˈmaɾ/.

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 1147, this pair ranks #74,468 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of mal vs mar

Shared letters: am. Private to "mal": l. Private to "mar": r.

"mal" · 3 letters · shape CVC  ·  "mar" · 3 letters · shape CVC

Frequently Asked Questions

Can "mal" and "mar" be used interchangeably?
No - they are not even the same part of speech. "mal" is an adverb and "mar" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "mal" or "mar"?
"mal" is the more common of the two: it sits at frequency rank #319 in our Portuguese list, against #828 for "mar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "mal" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mar" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #74,468 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "mal" and "mar" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs mar". Nearby pair

Confusion rank #74,468 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