meivsMoWhich spelling fits?

Quick tell: mei is a conjunction, Mo is a noun, so they fill different roles in a sentence.

Which to use

“mei” is a conjunction and “Mo” is a noun - they look or sound alike but fill different roles in a sentence.

#21,392
“mei” frequency rank
#7,993
“Mo” frequency rank
29385
confusion score

Side-by-Side Comparison

Feature mei Mo
Definition Ni (liaison simple). Métro.

Where the eye mixes mei and Mo

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

3 ch
mei
2 ch
Mo

Visual trap between mei and Mo

These two trip readers on the page rather than in the ear: mei is \ˈmɛi\ while Mo is \me.tʁo\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (conjunction vs noun), which is usually the fastest check. Our composite confusion score for this pair is 29385, derived from the frequency rank of both members and their visual similarity.

mei is recorded at frequency rank #21,392, classified as aconj, pronounced \ˈmɛi\. Mo is at rank #7,993, tagged as anoun, pronounced \me.tʁo\.

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 29385, this pair ranks #317,021 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of mei vs Mo

Shared letters: m. Private to "mei": ei. Private to "Mo": o.

"mei" · 3 letters · shape CVV  ·  "Mo" · 2 letters · shape CV

Frequently Asked Questions

Can "mei" and "Mo" be used interchangeably?
No - they are not even the same part of speech. "mei" is a conjunction and "Mo" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "mei" vs "Mo" - which ranks higher?
"Mo" is the more common of the two: it sits at frequency rank #7,993 in our French list, against #21,392 for "mei". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "mei" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Mo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #317,021 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "mei" and "Mo" also get mixed up with nearby pairs, the highest-scored neighbour is "mei vs MWh". Nearby pair

Confusion rank #317,021 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