merciervsmortierWhat's the difference?

Which to use

“mercier” and “mortier” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#12,198
“mercier” frequency rank
#13,639
“mortier” frequency rank
25837
confusion score

Side-by-Side Comparison

Feature mercier mortier
Definition Membre de la mercerie, corps qui importait des marchandises d’orient. Mélange pâteux, destiné à durcir, d’un liant et d’agrégats, servant à lier et sceller les pierres, les parpaings ou les briques d’une construction. Généralement il s'agit d'un mélange de sable, de ciment ou de chaux et d'eau.

Where the eye mixes mercier and mortier

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. mercier and mortier follow the identical consonant-vowel pattern (CVCCVVC). Same shape at a glance is often the real trap, independent of shared letters.

7 ch
mercier
7 ch
mortier

Why the eye confuses mercier with mortier

A purely visual mix-up. mercier (\mɛʁ.sje\) and mortier (\mɔʁ.tje\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 25837, derived from the frequency rank of both members and their visual similarity.

mercier is recorded at frequency rank #12,198, classified as anoun, pronounced \mɛʁ.sje\. mortier is at rank #13,639, tagged as anoun, pronounced \mɔʁ.tje\.

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 25837, this pair ranks #338,586 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of mercier vs mortier

Shared letters: eimr. Private to "mercier": c. Private to "mortier": ot.

"mercier" · 7 letters · shape CVCCVVC  ·  "mortier" · 7 letters · shape CVCCVVC

Known mistypes of this pair

  • mercier ← emrcier · mecrier · merccier · merceir · mercierr · mercire · mericer · merrcier
  • mortier ← mmortier · moriter · morrtier · morteir · mortierr · mortire · morttier · motrier

Frequently Asked Questions

Can "mercier" and "mortier" be used interchangeably?
No. They are said differently (\mɛʁ.sje\ versus \mɔʁ.tje\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "mercier" vs "mortier" - which ranks higher?
"mercier" is the more common of the two: it sits at frequency rank #12,198 in our French list, against #13,639 for "mortier". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "mercier" and "mortier" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "mercier" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mortier" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #338,586 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "mercier" and "mortier" also get mixed up with nearby pairs, the highest-scored neighbour is "morfler vs mortier". 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 #338,586 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