The word "Shivahn" is a unique spelling of the name "Siobhan". It is pronounced as /ʃɪˈvɔːn/ in IPA phonetic transcription. The "Sh" sound is represented by the symbol /ʃ/ while the "i" is pronounced as /ɪ/. The "o" is pronounced as /ɔː/ and the "a" is silent. Lastly, the "n" is pronounced as /n/. The spelling of "Shivahn" could be attributed to a person's preference or cultural background, as variations of names can have different spellings depending on the country of origin.