mervsMRTell them apart

Quick tell: mer is a noun, MR is a name, so they fill different roles in a sentence.

Which to use

“mer” is a noun and “MR” is a name - they look or sound alike but fill different roles in a sentence.

#657
“mer” frequency rank
#2,434
“MR” frequency rank
3091
confusion score

Side-by-Side Comparison

Feature mer MR
Definition Vaste étendue d’eau salée qui baigne les diverses parties de la terre. Mouvement Réformateur, parti politique belge francophone de droite.

Where the eye mixes mer and MR

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
mer
2 ch
MR

Look-alike desk: mer vs MR

These two trip readers on the page rather than in the ear: mer is \mɛʁ\ while MR is \ɛ.m‿ɛʁ\. 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 name), which is usually the fastest check. Our composite confusion score for this pair is 3091, derived from the frequency rank of both members and their visual similarity.

mer is recorded at frequency rank #657, classified as anoun, pronounced \mɛʁ\. MR is at rank #2,434, tagged as aname, pronounced \ɛ.m‿ɛʁ\.

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 3091, this pair ranks #434,802 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of mer vs MR

Shared letters: mr. Private to "mer": e. Private to "MR": -.

"mer" · 3 letters · shape CVC  ·  "MR" · 2 letters · shape CC

Frequently Asked Questions

Is swapping "mer" for "MR" ever safe?
No - they are not even the same part of speech. "mer" is a noun and "MR" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "mer" or "MR"?
"mer" is the more common of the two: it sits at frequency rank #657 in our French list, against #2,434 for "MR". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "mer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "MR" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #434,802 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "mer" and "MR" also get mixed up with nearby pairs, the highest-scored neighbour is "MR vs MWh". Nearby pair

Confusion rank #434,802 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list