The spelling of the word "re doubt" can be confusing for some individuals. The word "doubt" is commonly pronounced with a silent "b," leading many to mistakenly spell it as "redoubt." However, the correct spelling is indeed "re doubt," with no second "e" or "b." This can be confirmed through its phonetic transcription, which is /riː daʊt/. Remembering this correct spelling can help prevent errors in writing and communication.