mHvsMRWhich spelling fits?

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

Which to use

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

#24,675
“mH” frequency rank
#2,434
“MR” frequency rank
27109
confusion score

Side-by-Side Comparison

Feature mH MR
Definition Symbole du millihenry, unité de mesure d’inductance du Système international (SI), valant 10⁻³ henry. Mouvement Réformateur, parti politique belge francophone de droite.

Letter map: mH vs MR

Shared letters muted; letters that set mH and MR apart highlighted. Shared run: 1.

2 ch
mH
2 ch
MR

Role in the sentence - mH and MR

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: mH is asymbol and MRaname. On the page they differ by a single letter - h in “mH” becomes r in “MR”. Our composite confusion score for this pair is 27109, derived from the frequency rank of both members and their visual similarity.

mH is recorded at frequency rank #24,675, classified as asymbol. 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 27109, this pair ranks #331,033 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of mH vs MR

Shared letters: m. Private to "mH": h. Private to "MR": r.

"mH" · 2 letters · shape CC  ·  "MR" · 2 letters · shape CC

Frequently Asked Questions

Is swapping "mH" for "MR" ever safe?
No - they are not even the same part of speech. "mH" is a symbol and "MR" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "mH" or "MR" show up more?
"MR" is the more common of the two: it sits at frequency rank #2,434 in our French list, against #24,675 for "mH". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "mH" and "MR". Here's where to go from here.

  • Full dictionary entry for "mH" 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 #331,033 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "mH" and "MR" also get mixed up with nearby pairs, the highest-scored neighbour is "mH vs MWh". Nearby pair

Confusion rank #331,033 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