Which to use
“mer” is a noun and “mor” is an adjective - they look or sound alike but fill different roles in a sentence.
- #22,090
- “mer” frequency rank
- #6,447
- “mor” frequency rank
- 28537
- confusion score
Side-by-Side Comparison
| Feature | mer | mor |
|---|---|---|
| Definition | mar | maior |
Where the eye mixes mer and mor
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between mer and mor
These two trip readers on the page rather than in the ear: mer is /mɛʁ/ while mor is /ˈmɔh/ (carioca). Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - e in “mer” becomes o in “mor”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 28537, derived from the frequency rank of both members and their visual similarity.
mer is recorded at frequency rank #22,090, classified as anoun, pronounced /mɛʁ/. mor is at rank #6,447, tagged as anadj, pronounced /ˈmɔh/ (carioca).
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 28537, this pair ranks #40,275 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of mer vs mor
Shared letters: mr. Private to "mer": e. Private to "mor": o.
"mer" · 3 letters · shape CVC · "mor" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "mer" for "mor" ever safe?
Frequency check: "mer" vs "mor" - which ranks higher?
Useful next steps
Eye-level mix-up between "mer" and "mor" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "mer" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "mor" - compare definitions side by side with the headword page. Word entry
- This pair ranks #40,275 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "mer" and "mor" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs mer". Nearby pair
Confusion rank #40,275 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.