#1 obliterate v. [kill, wipe out] mark for deletion, rub off, or erase; "kill these lines in the President's speech". wn
#2 obliterate v. [obscure, blot out, veil, hide] make undecipherable or imperceptible by obscuring or concealing; "a hidden message"; "a veiled threat". wn
#3 obliterate v. [efface] remove completely from recognition or memory; "efface the memory of the time in the camps". wn
#4 obliterate s. [blotted out, obliterated] reduced to nothingness. wn
#5 obliterate v. do away with completely, without leaving a trace. wn
vizzz