merahvsmersWhat's the difference?

Quick tell: merah is a adjective, mers is a noun, so they fill different roles in a sentence.

Which to use

“merah” is an adjective and “mers” is a noun - they look or sound alike but fill different roles in a sentence.

#23,609
“merah” frequency rank
#8,271
“mers” frequency rank
31880
confusion score

Side-by-Side Comparison

Feature merah mers
Definition Rouge. Pluriel de mer.

Letter map: merah vs mers

Shared letters muted; letters that set merah and mers apart highlighted. Shared run: 3. merah runs 5 letters (CVCVC) against mers's 4 (CVCC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
merah
4 ch
mers

Part-of-speech tell for merah / mers

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: merah is anadjective and mersanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 31880, derived from the frequency rank of both members and their visual similarity.

merah is recorded at frequency rank #23,609, classified as anadj. mers is at rank #8,271, tagged as anoun, pronounced \mɛʁ\.

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 31880, this pair ranks #300,983 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of merah vs mers

Shared letters: emr. Private to "merah": ah. Private to "mers": s.

"merah" · 5 letters · shape CVCVC  ·  "mers" · 4 letters · shape CVCC

Known mistypes of this pair

  • merahemrah · mearh · merahh · merha · merrah · mmerah · mreah
  • mersemrs · merrs · merss · mesr · mmers · mres

Frequently Asked Questions

Is swapping "merah" for "mers" ever safe?
No - they are not even the same part of speech. "merah" is an adjective and "mers" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "merah" or "mers" show up more?
"mers" is the more common of the two: it sits at frequency rank #8,271 in our French list, against #23,609 for "merah". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "merah" and "mers".

  • Full dictionary entry for "merah" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mers" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #300,983 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "merah" and "mers" also get mixed up with nearby pairs, the highest-scored neighbour is "merah vs Méry". 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 #300,983 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