mvsmarWhat's the difference?

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

Which to use

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

#701
“m” frequency rank
#828
“mar” frequency rank
1529
confusion score

Side-by-Side Comparison

Feature m mar
Definition símbolo de metro grande quantidade de água salgada que cobre parte do planeta Terra, podendo estar localizada junto ou dentro de continentes

Letter map: m vs mar

Shared letters muted; letters that set m and mar apart highlighted. Shared run: 1.

1 ch
m
3 ch
mar

Part-of-speech tell for m / mar

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: m is asymbol and maranoun. On the page they differ by 2 extra letter(s) - “m” sits inside “mar”. Our composite confusion score for this pair is 1529, derived from the frequency rank of both members and their visual similarity.

m is recorded at frequency rank #701, classified as asymbol. 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 1529, this pair ranks #74,021 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of m vs mar

Shared letters: m. Private to "m": -. Private to "mar": ar.

"m" · 1 letters · shape C  ·  "mar" · 3 letters · shape CVC

Frequently Asked Questions

Do "m" and "mar" mean the same thing in a sentence?
No - they are not even the same part of speech. "m" is a symbol and "mar" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "m" or "mar" show up more?
"m" is the more common of the two: it sits at frequency rank #701 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.

After this comparison

Done with this confusable. These links stay specific to "m" and "mar".

  • Full dictionary entry for "m" 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 #74,021 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "m" and "mar" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs mar". Nearby pair

Confusion rank #74,021 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