mmvsmoiWhich spelling fits?

Quick tell: mm is a noun, moi is a pronoun, so they fill different roles in a sentence.

Which to use

“mm” is a noun and “moi” is a pronoun - they look or sound alike but fill different roles in a sentence.

#2,511
“mm” frequency rank
#26,538
“moi” frequency rank
29049
confusion score

Side-by-Side Comparison

Feature mm moi
Definition Abreviatura de milímetro. Yo.

Where the eye mixes mm and moi

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

2 ch
mm
3 ch
moi

Why the eye confuses mm with moi

These two trip readers on the page rather than in the ear: mm is [ˈm] while moi is [mwa]. 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 (noun vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 29049, derived from the frequency rank of both members and their visual similarity.

mm is recorded at frequency rank #2,511, classified as anoun, pronounced [ˈm]. moi is at rank #26,538, tagged as apron, pronounced [mwa].

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 29049, this pair ranks #218,934 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of mm vs moi

Shared letters: m. Private to "mm": -. Private to "moi": io.

"mm" · 2 letters · shape CC  ·  "moi" · 3 letters · shape CVV

Frequently Asked Questions

Can "mm" and "moi" be used interchangeably?
No - they are not even the same part of speech. "mm" is a noun and "moi" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "mm" vs "moi" - which ranks higher?
"mm" is the more common of the two: it sits at frequency rank #2,511 in our Spanish list, against #26,538 for "moi". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "mm" and "moi" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "mm" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "moi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #218,934 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "mm" and "moi" also get mixed up with nearby pairs, the highest-scored neighbour is "moi vs mur". Nearby pair

Confusion rank #218,934 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list