1. (computing) Of a network of two or more computers connected as equal partners and able to share processing, control and access to data and peripherals
   "They used a peer-to-peer network for file sharing";
   - P2P
    
2. Of a social network of equal partners able to conduct business without using a middle man
   "The peer-to-peer lending platform connects borrowers directly with individual lenders";
   - P2P

Encyclopedia: Peer-to-peer