P2P noun 1adjective 6 noun1 •phenyl-2-propanone (phenylacetone) adjective6 •Initialism of peer-to-peer. •(Internet) Initialism of pay-to-play. •(Philippines) Initialism of point-to-point. •Initialism of procure-to-pay. •Initialism of people-to-people. •Initialism of pulled-to-publish.