Noun: Pakistani(s)
Adjective: Pakistani
Noun: Palauan(s)
Adjective: Palauan
Noun: Panamanian(s)
Adjective: Panamanian
Noun: Papua New Guinean(s)
Adjective: Papua New Guinean
Noun: Paraguayan(s)
Adjective: Paraguayan
Noun: Peruvian(s)
Adjective: Peruvian
Noun: Filipino(s)
Adjective: Philippine
Noun: Pitcairn Islander(s)
Adjective: Pitcairn Islander
Noun: Pole(s)
Adjective: Polish
Noun: Portuguese (singular and plural)
Adjective: Portuguese
Noun: Puerto Rican(s) (US citizens)
Adjective: Puerto Rican