The spelling of the word "Gahl" is not a common one. It can be pronounced as [ɡɑːl], with the "a" sound representing the long "a" sound as in "palm". The "h" in the spelling is silent, so it has no impact on the pronunciation. The word may have origins from different languages, and thus, its spelling is unique. When encountering uncommon spellings, it can be helpful to consult a pronunciation guide or a dictionary for proper pronunciation.