international civil aircraft marking for Brazil
• British vehicle registration for Luton
• Geophysics Pacific plate
• parcel post
• parish priest
• parliamentary papers
• (Spain ) Partido Popular (Popular Party)
• Pastor Pastorum (Latin: Shepherd of the Shepherds)
• Past President
• Pater Patriae (Latin: Father of his Country)
• Patres (Latin: Fathers)
• Med. pellagra-preventive (in PP factor , former name for the vitamin nicotinic acid)
• permanent pass
• petrol point
• Chem. phenolphthalein (test paper for alkalinity)
• pilot plant
• Chem. polyprop(yl)ene
• prepositional phrase