The spelling of the word "mantl" may seem unusual, but it actually follows standard English phonetic rules. The IPA transcription of this word would be /ˈmantl/. The initial "m" is pronounced with a nasal sound, while the "a" is pronounced with a short vowel sound. The "n" and "t" sounds are pronounced as expected, but the final "l" is often silent in English words. Therefore, "mantl" would be pronounced as "mant" or "mantle" depending on the intended meaning.