The spelling of the word "Sirvanna" is unique and uncommon. It is often mistaken for the spelling "Savannah" due to the similar sound. However, the main difference is the "r" sound in "Sirvanna", which is pronounced with the IPA transcription /r/. This sound is produced by flicking the tongue against the roof of the mouth while also vibrating the vocal cords. This distinct sound is what sets "Sirvanna" apart from similar words and helps to clarify its spelling.