"Siani" is a Welsh name that is commonly spelled as it is pronounced. In phonetic transcription, it would be spelled as /ʃaɪˈani/. The letter combination "si" produces the "sh" sound (represented by /ʃ/), while the letter "a" is pronounced as the long "i" sound (represented by /aɪ/). The final letter "i" is pronounced as "ee" (represented by /i/). This spelling accurately reflects the Welsh pronunciation of the name, which is commonly used both in Wales and throughout the world.