C2C(redirected from C-to-C)
Also found in: Acronyms.
C2C(1) (Client to Client) An earlier term for peer-to-peer (P2P), in which one user communicates with another user without going through a server in between. See peer-to-peer and X2X.
(2) (Customer to Customer) A website such as eBay or PayPal, in which a user negotiates a business transaction with another user.