The name "Caelin" is a unique spelling of the traditional Gaelic name "Caoilfhionn". The IPA phonetic transcription of "Caelin" is /ˈkeɪlɪn/. The "ae" combination in the name represents the sound /eɪ/. The "i" after the "l" is not pronounced, and the final letter "n" is pronounced as /n/. This unique spelling of the name gives it a distinct and modern twist while still maintaining its traditional roots.