Which to use
“mer” is a noun and “mo” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #22,090
- “mer” frequency rank
- #4,745
- “mo” frequency rank
- 26835
- confusion score
Side-by-Side Comparison
| Feature | mer | mo |
|---|---|---|
| Definition | mar | combinação de me (pronome pessoal oblíquo átono) e o (pronome pessoal oblíquo átono, pronome demonstrativo masculino ou pronome demonstrativo neutro) |
Where the eye mixes mer and mo
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between mer and mo
These two trip readers on the page rather than in the ear: mer is /mɛʁ/ while mo is /mo/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 26835, 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/. mo is at rank #4,745, tagged as apron, pronounced /mo/.
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 26835, this pair ranks #42,254 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of mer vs mo
Shared letters: m. Private to "mer": er. Private to "mo": o.
"mer" · 3 letters · shape CVC · "mo" · 2 letters · shape CV
Frequently Asked Questions
Do "mer" and "mo" mean the same thing in a sentence?
Frequency check: "mer" vs "mo" - which ranks higher?
What to do next
Eye-level mix-up between "mer" and "mo" 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 "mo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #42,254 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "mer" and "mo" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs mer". Nearby pair
Confusion rank #42,254 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.