Which to use
“mer” and “Mo” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #657
- “mer” frequency rank
- #7,993
- “Mo” frequency rank
- 8650
- confusion score
Side-by-Side Comparison
| Feature | mer | Mo |
|---|---|---|
| Definition | Vaste étendue d’eau salée qui baigne les diverses parties de la terre. | Métro. |
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
A purely visual mix-up. mer (\mɛʁ\) and Mo (\me.tʁo\) 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 8650, derived from the frequency rank of both members and their visual similarity.
mer is recorded at frequency rank #657, classified as anoun, pronounced \mɛʁ\. Mo is at rank #7,993, tagged as anoun, pronounced \me.tʁo\.
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 8650, this pair ranks #419,299 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
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 #419,299 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "mer" and "Mo" also get mixed up with nearby pairs, the highest-scored neighbour is "Mo vs MWh". Nearby pair
Confusion rank #419,299 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.