dis so ci a tion /di s SH SH( )n,di s s SH( )n/ noun the disconnection or separation of something from something else or the state of being disconnected. synonyms: separation, disconnection, detachment, severance, divorce, split THE DILLINGER ESCAPE PLAN has been a juggernaut since their inception in 1997. With their appeal to music lovers of many varieties and tastes, their unparalleled live performances, their awards and accolades and their ultra-loyal legion of fans, they have made an indelible mark on the world of rock music.