The word "muris" is spelled with five letters, but its pronunciation can be deceiving. The IPA phonetic transcription for "muris" is /muːrɪs/. The vowel sound in the first syllable is a long "u" sound represented by "/uː/". The second syllable contains a short "i" sound represented by "/ɪ/". Therefore, the spelling of "muris" seems odd compared to its pronunciation. This word is often used in scientific terminology to refer to a genus of mice known as Mus.