mortvsMSTWhich spelling fits?

Which to use

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

#187
“mort” frequency rank
#27,137
“MST” frequency rank
27324
confusion score

Side-by-Side Comparison

Feature mort MST
Definition Arrêt définitif des fonctions vitales (assimilation de nutriments, respiration, fonctionnement du système nerveux central). Maladie transmissible par les rapports sexuels.

Where the eye mixes mort and MST

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

4 ch
mort
3 ch
MST

Why the eye confuses mort with MST

A purely visual mix-up. mort (\mɔʁ\) and MST (\ɛm.ɛs.te\) 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 27324, derived from the frequency rank of both members and their visual similarity.

mort is recorded at frequency rank #187, classified as anoun, pronounced \mɔʁ\. MST is at rank #27,137, tagged as anoun, pronounced \ɛm.ɛs.te\.

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 27324, this pair ranks #329,706 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of mort vs MST

Shared letters: mt. Private to "mort": or. Private to "MST": s.

"mort" · 4 letters · shape CVCC  ·  "MST" · 3 letters · shape CCC

Known mistypes of this pair

  • mortmmort · morrt · mortt · motr · mrot · omrt

Frequently Asked Questions

Can "mort" and "MST" be used interchangeably?
No. They are said differently (\mɔʁ\ versus \ɛm.ɛs.te\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "mort" or "MST"?
"mort" is the more common of the two: it sits at frequency rank #187 in our French list, against #27,137 for "MST". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "mort" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "MST" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #329,706 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "mort" and "MST" also get mixed up with nearby pairs, the highest-scored neighbour is "MST vs MWh". 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 #329,706 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