Which to use
“M1” and “MB” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #20,489
- “M1” frequency rank
- #20,498
- “MB” frequency rank
- 40987
- confusion score
Side-by-Side Comparison
| Feature | M1 | MB |
|---|---|---|
| Definition | Messier 1, la nébuleuse du Crabe. | Frère de la mère. Oncle maternel. On est pour son MB un ZS ou une ZD. |
Where the eye mixes M1 and MB
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between M1 and MB
A purely visual mix-up. M1 (\ɛm‿œ̃\) and MB (\ɛm.be\) 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 a single letter - 1 in “M1” becomes b in “MB”. Our composite confusion score for this pair is 40987, derived from the frequency rank of both members and their visual similarity.
M1 is recorded at frequency rank #20,489, classified as anoun, pronounced \ɛm‿œ̃\. MB is at rank #20,498, tagged as anoun, pronounced \ɛm.be\.
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 40987, this pair ranks #236,431 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of M1 vs MB
Shared letters: m. Private to "M1": -. Private to "MB": b.
"M1" · 1 letters · shape C · "MB" · 2 letters · shape CC
Frequently Asked Questions
Is swapping "M1" for "MB" ever safe?
In ordinary French text, does "M1" or "MB" show up more?
What to do next
Eye-level mix-up between "M1" and "MB" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "M1" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "MB" - compare definitions side by side with the headword page. Word entry
- This pair ranks #236,431 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "M1" and "MB" also get mixed up with nearby pairs, the highest-scored neighbour is "MB vs MWh". Nearby pair
Confusion rank #236,431 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.