word | | Nationality |
| adjective | Northern Mariana Islands | noun: NA (US citizens) adjective: NA |
| adjective | Norway | noun: Norwegian(s) adjective: Norwegian |
| adjective | Oman | noun: Omani(s) adjective: Omani |
| adjective | Pakistan | noun: Pakistani(s) adjective: Pakistani |
| adjective | Palau | noun: Palauan(s) adjective: Palauan |
| adjective | Panama | noun: Panamanian(s) adjective: Panamanian |
| adjective | Papua New Guinea | noun: Papua New Guinean(s) adjective: Papua New Guinean |
| adjective | Paraguay | noun: Paraguayan(s) adjective: Paraguayan |
| adjective | Peru | noun: Peruvian(s) adjective: Peruvian |
| adjective | Philippines | noun: Filipino(s) adjective: Philippine |
| adjective | Pitcairn Islands | noun: Pitcairn Islander(s) adjective: Pitcairn Islander |
| adjective | Poland | noun: Pole(s) adjective: Polish |
| adjective | Portugal | noun: Portuguese (singular and plural) adjective: Portuguese |
| adjective | Puerto Rico | noun: Puerto Rican(s) (US citizens) adjective: Puerto Rican |
| adjective | Qatar | noun: Qatari(s) adjective: Qatari |
| adjective | Romania | noun: Romanian(s) adjective: Romanian |
| adjective | Russia | noun: Russian(s) adjective: Russian |
| adjective | Rwanda | noun: Rwandan(s) adjective: Rwandan |