The spelling of the word "Phinian" may seem confusing at first glance, but it follows a simple pattern. The initial "Ph" indicates the sound /f/ rather than /p/. The letter "i" is pronounced as /ɪ/, like in "sit". The following "n" represents the sound /n/. Finally, "ian" sounds like /iən/, as in "Canadian". Therefore, the correct IPA transcription of "Phinian" would be /ˈfɪniən/. Though it may be unfamiliar, paying attention to the individual sounds can help clarify this spelling.
Apologies, but "Phinian" does not appear to have a widely recognized or established definition in dictionaries. It is possible that "Phinian" may be a proper noun, such as a name or a term referencing a specific individual, location, or entity. If you can provide further context, I would be happy to help you with any information or definition related to the specific term you are referring to.