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ENGLISH · A WORD WITH POSSIBILITIES

mouser.

A cat that catches mice, kept specifically for the purpose.

6 characters2 syllables approx.English language

Meaning & usage

noun/ˈmaʊzə(ɹ)//ˈmaʊsə(ɹ)/
  1. A cat that catches mice, kept specifically for the purpose.

  2. A moustache.

    Scotland · US
Where this word comes from

From Middle English mousere (“a hunter of mice”), equivalent to mouse + -er (agent noun suffix) or + -er (occupational suffix). The “moustache” sense is apparently an extended usage (i.e., a cat’s whiskers, jocularly transferred to human beings), possibly with influence from moustache.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.