FOIN Meaning of FOIN in English /foyn/ , Archaic.n.1. a thrust with a weapon. v.i.2. to thrust with a weapon; lunge. [ 1325-75; ME (v.), appar. foine fish spear fuscina ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012