merovsmornoWhich spelling fits?

Which to use

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

#12,105
“mero” frequency rank
#29,833
“morno” frequency rank
41938
confusion score

Side-by-Side Comparison

Feature mero morno
Definition simples pouco quente

Where the eye mixes mero and morno

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. mero runs 4 letters (CVCV) against morno's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
mero
5 ch
morno

Why the eye confuses mero with morno

A purely visual mix-up. mero (/ˈmɛ.ɾu/) and morno (/ˈmoɾ.nu/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 41938, derived from the frequency rank of both members and their visual similarity.

mero is recorded at frequency rank #12,105, classified as anadj, pronounced /ˈmɛ.ɾu/. morno is at rank #29,833, tagged as anadj, pronounced /ˈmoɾ.nu/.

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 41938, this pair ranks #23,912 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of mero vs morno

Shared letters: mor. Private to "mero": e. Private to "morno": n.

"mero" · 4 letters · shape CVCV  ·  "morno" · 5 letters · shape CVCCV

Known mistypes of this pair

  • mero ← emro · meor · merro · mmero · mreo
  • morno ← mmorno · monro · mornno · moron · morrno · mrono · omrno

Frequently Asked Questions

Is swapping "mero" for "morno" ever safe?
No. They are said differently (/ˈmɛ.ɾu/ versus /ˈmoɾ.nu/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "mero" vs "morno" - which ranks higher?
"mero" is the more common of the two: it sits at frequency rank #12,105 in our Portuguese list, against #29,833 for "morno". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "mero" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "morno" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #23,912 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "mero" and "morno" also get mixed up with nearby pairs, the highest-scored neighbour is "mogno vs morno". 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 #23,912 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