PIE Meaning of PIE in English n. & v. (US pi) n. 1 a confused mass of printers' type. 2 chaos. v.tr. (pieing) muddle up (type). [ perh. transl. F P&AC.T&EA. = PIE(1) ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012