Which to use
“mu” is an unknown and “must” is a verb - they look or sound alike but fill different roles in a sentence.
- #18,336
- “mu” frequency rank
- #11,712
- “must” frequency rank
- 30048
- confusion score
Side-by-Side Comparison
| Feature | mu | must |
|---|---|---|
| Definition | Genitiv Singular des Personalpronomens mina | 2. Person Plural Imperativ Präsens Aktiv des Verbs musen |
Letter map: mu vs must
Shared letters muted; letters that set mu and must apart highlighted. Shared run: 2.
Grammar separator: mu vs must
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: mu is anunknown and mustaverb. On the page they differ by 2 extra letter(s) - “mu” sits inside “must”. Our composite confusion score for this pair is 30048, derived from the frequency rank of both members and their visual similarity.
mu is recorded at frequency rank #18,336, classified as anunknown, pronounced […]. must is at rank #11,712, tagged as averb, pronounced [muːst].
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 30048, this pair ranks #1,755,384 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of mu vs must
Shared letters: mu. Private to "mu": -. Private to "must": st.
"mu" · 2 letters · shape CV · "must" · 4 letters · shape CVCC
Known mistypes of this pair
- must ← mmust · msut · mustt · muts · umst
Frequently Asked Questions
Can "mu" and "must" be used interchangeably?
In ordinary German text, does "mu" or "must" show up more?
Useful next steps
Pair "mu" vs "must" is on the table, pick a follow-up below.
- Full dictionary entry for "mu" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "must" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,755,384 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "mu" and "must" also get mixed up with nearby pairs, the highest-scored neighbour is "mu vs puzzles". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #1,755,384 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.