mmvsmyWhich spelling fits?

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

Which to use

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

#1,186
“mm” frequency rank
#2,119
“my” frequency rank
3305
confusion score

Side-by-Side Comparison

Feature mm my
Definition Einheitensymbol für Millimeter possessives Personalpronomen für die 1. Person Singular; mein

Letter map: mm vs my

Shared letters muted; letters that set mm and my apart highlighted. Shared run: 1.

2 ch
mm
2 ch
my

Grammar separator: mm vs my

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: mm is anabbrev and myapronoun. On the page they differ by a single letter - m in “mm” becomes y in “my”. Our composite confusion score for this pair is 3305, derived from the frequency rank of both members and their visual similarity.

mm is recorded at frequency rank #1,186, classified as anabbrev. my is at rank #2,119, tagged as apron, pronounced [maɪ].

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 3305, this pair ranks #2,000,500 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of mm vs my

Shared letters: m. Private to "mm": -. Private to "my": y.

"mm" · 2 letters · shape CC  ·  "my" · 2 letters · shape CV

Frequently Asked Questions

Do "mm" and "my" mean the same thing in a sentence?
No - they are not even the same part of speech. "mm" is an abbrev and "my" a pronoun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "mm" or "my" show up more?
"mm" is the more common of the two: it sits at frequency rank #1,186 in our German list, against #2,119 for "my". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "mm" and "my". Here's where to go from here.

  • Full dictionary entry for "mm" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "my" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,000,500 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "mm" and "my" also get mixed up with nearby pairs, the highest-scored neighbour is "mme vs my". Nearby pair

Confusion rank #2,000,500 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list