PPPTranslate PPP | into Italian Definition of PPP abbreviation Pakistan People’s Party. Computing point to point protocol, which allows data conforming to the Internet protocol IP to be handled on a serial line. purchasing power parity (a way of measuring what an amount of money will buy in different countries). British public-private partnership, an arrangement whereby a public project or service is partially financed or run by a private company. PPP in other Oxford dictionaries Definition of PPP in the US English dictionary