MP4vsmusConfusable pair

Quick tell: MP4 is a name, mus is a noun, so they fill different roles in a sentence.

Which to use

“MP4” is a name and “mus” is a noun - they look or sound alike but fill different roles in a sentence.

#49,242
“MP4” frequency rank
#26,805
“mus” frequency rank
76047
confusion score

Side-by-Side Comparison

Feature MP4 mus
Definition Norme d’encodage multimédia (audio ou vidéo) sous forme numérique. Jeu de cartes populaire d'origine basque.

Where the eye mixes MP4 and mus

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
MP4
3 ch
mus

Visual trap between MP4 and mus

These two trip readers on the page rather than in the ear: MP4 is \ɛm.pe.katʁ\ while mus is \muʃ\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 76047, derived from the frequency rank of both members and their visual similarity.

MP4 is recorded at frequency rank #49,242, classified as aname, pronounced \ɛm.pe.katʁ\. mus is at rank #26,805, tagged as anoun, pronounced \muʃ\.

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 76047, this pair ranks #32,260 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of MP4 vs mus

Shared letters: m. Private to "MP4": p. Private to "mus": su.

"MP4" · 2 letters · shape CC  ·  "mus" · 3 letters · shape CVC

Frequently Asked Questions

Do "MP4" and "mus" mean the same thing in a sentence?
No - they are not even the same part of speech. "MP4" is a name and "mus" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "MP4" vs "mus" - which ranks higher?
"mus" is the more common of the two: it sits at frequency rank #26,805 in our French list, against #49,242 for "MP4". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "MP4" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #32,260 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "MP4" and "mus" also get mixed up with nearby pairs, the highest-scored neighbour is "MP4 vs MWh". Nearby pair

Confusion rank #32,260 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