The correct spelling of the phrase "most knownothing" is actually "mote know-nothing". The word "mote" means a small particle or speck, while "know-nothing" refers to a movement in the 19th century United States that opposed immigration and held anti-Catholic views. The pronunciation is /moʊt/ "mote" and /noʊˈnʌθɪŋ/ "know-nothing". It's important to remember the proper spelling and pronunciation of words to enhance communication and avoid misunderstandings.