| Part of speech | common noun |
|---|---|
| Hyphenation | mus·o |
| Singular | Plural | |
|---|---|---|
| Nominative | muso | musoj |
| Accusative | muson | musojn |
| Afrikaans | muis |
|---|---|
| Albanian | mi |
| Catalan | ratolí |
| Czech | myš |
| Danish | mus |
| Dutch | muis |
| English | mouse |
| English (Old English) | mus |
| Faeroese | mús |
| Finnish | hiiri |
| French | souris |
| German | Maus |
| Greek | ποντίκι |
| Hungarian | egér |
| Icelandic | mús |
| Italian | sorcio; topo |
| Latin | mus |
| Low German | muus |
| Luxemburgish | Maus |
| Malay | tikus |
| Norwegian | mus |
| Papiamento | raton |
| Polish | mysz |
| Portuguese | camundongo; rato |
| Saterland Frisian | Muus |
| Scots | moose |
| Scottish Gaelic | luch |
| Spanish | ratón |
| Sranan | moysmoysi |
| Swahili | panya mdogo; panya |
| Swedish | mus; råtta |
| Thai | หนู |
| Turkish | fare |
| Welsh | llygoden |
| West Frisian | mûs |
| Yiddish | מױז |