mumvsmusConfusable pair

Quick tell: mum is a noun, mus is a verb, so they fill different roles in a sentence.

Which to use

“mum” is a noun and “mus” is a verb - they look or sound alike but fill different roles in a sentence.

#11,295
“mum” frequency rank
#22,072
“mus” frequency rank
33367
confusion score

Side-by-Side Comparison

Feature mum mus
Definition Ester aus Fettsäuren und langkettigen Alkoholen; Wachs 2. Person Singular Imperativ Präsens Aktiv des Verbs musen

Where the eye mixes mum and mus

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
mum
3 ch
mus

Visual trap between mum and mus

These two trip readers on the page rather than in the ear: mum is [mum] while mus is [muːs]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - m in “mum” becomes s in “mus”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 33367, derived from the frequency rank of both members and their visual similarity.

mum is recorded at frequency rank #11,295, classified as anoun, pronounced [mum]. mus is at rank #22,072, tagged as averb, pronounced [muːs].

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 33367, this pair ranks #1,687,496 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of mum vs mus

Shared letters: mu. Private to "mum": -. Private to "mus": s.

"mum" · 3 letters · shape CVC  ·  "mus" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "mum" for "mus" ever safe?
No - they are not even the same part of speech. "mum" is a noun and "mus" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "mum" or "mus" show up more?
"mum" is the more common of the two: it sits at frequency rank #11,295 in our German list, against #22,072 for "mus". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "mum" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,687,496 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "mum" and "mus" also get mixed up with nearby pairs, the highest-scored neighbour is "Mals vs mus". Nearby pair

Confusion rank #1,687,496 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