marshvsmorsaWhich spelling fits?

Which to use

“marsh” and “morsa” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#25,040
“marsh” frequency rank
#41,617
“morsa” frequency rank
66657
confusion score

Side-by-Side Comparison

Feature marsh morsa
Definition brejo mamífero da espécie Odobenus rosmarus

Where the eye mixes marsh and morsa

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. marsh (CVCCC) and morsa (CVCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
marsh
5 ch
morsa

Look-alike desk: marsh vs morsa

A purely visual mix-up. marsh (/mɑɹʃ/) and morsa (/ˈmɔɹ.sa/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 66657, derived from the frequency rank of both members and their visual similarity.

marsh is recorded at frequency rank #25,040, classified as anoun, pronounced /mɑɹʃ/. morsa is at rank #41,617, tagged as anoun, pronounced /ˈmɔɹ.sa/.

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 66657, this pair ranks #4,908 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of marsh vs morsa

Shared letters: amrs. Private to "marsh": h. Private to "morsa": o.

"marsh" · 5 letters · shape CVCCC  ·  "morsa" · 5 letters · shape CVCCV

Known mistypes of this pair

  • marsh ← amrsh · marhs · marrsh · marshh · marssh · masrh · mmarsh · mrash
  • morsa ← mmorsa · moras · morrsa · morssa · mosra · mrosa · omrsa

Frequently Asked Questions

Can "marsh" and "morsa" be used interchangeably?
No. They are said differently (/mɑɹʃ/ versus /ˈmɔɹ.sa/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "marsh" or "morsa" show up more?
"marsh" is the more common of the two: it sits at frequency rank #25,040 in our Portuguese list, against #41,617 for "morsa". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "marsh" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "morsa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #4,908 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "marsh" and "morsa" also get mixed up with nearby pairs, the highest-scored neighbour is "mirra vs morsa". 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 #4,908 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