* If "Pj" means pajamas: You would say "pajama" in Swahili.
* If "Pj" is a nickname or abbreviation for a name: You would need to know the full name to translate it.
* If "Pj" is a slang term or acronym: There might not be a direct Swahili equivalent, and you would need more context to find an appropriate translation.
Please provide more context about what "Pj" refers to, and I can help you with a more accurate translation.