mouser
/ˈmaʊzə(ɹ)/
"mouser" is a 6-letter English headword indexed on PlainSpell.
The verdict
“mouser” is an uncommon English word, ranked #83,535 in English word frequency and used as a noun.
- #83,535
- frequency rank, English
- 6
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A cat that catches mice, kept specifically for the purpose.
| Property | Value |
|---|---|
| Headword | mouser |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈmaʊzə(ɹ)/ |
| Letters | 6 |
| Frequency rank | #83,535 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “mouser” sits in English frequency
Spelling & Dictionary Insight
The English entry for mouser is 6 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈmaʊzə(ɹ)/. Corpus data places it at rank #83,535 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
mouser has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: 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 w… The correct English form is mouser, spelled M-O-U-S-E-R.
Definition
- 1A cat that catches mice, kept specifically for the purpose.
- 2A moustache.
Etymology
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.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “mouser”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is M-O-U-S-E-R - every other letter order is a misspelling in standard orthography.
- Say it as /ˈmaʊzə(ɹ)/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.