The word "allmouth" is derived from the Old English term "ealmūþa," meaning an eel's mouth. In modern English, it refers to a person who talks excessively or arrogantly. The correct spelling of this word uses three syllables and is pronounced /ˈɔːlmaʊθ/ (awl-mouth) with stress on the first syllable. The letter "l" appears twice in the spelling, representing the sound of /l/ in both syllables. This word can be used to describe someone who dominates a conversation or talks in a boastful manner.