obliterate

(verb) mark for deletion, rub off, or erase. Synonyms: kill, wipe out. Examples: "Kill these lines in the president's speech."

(verb) make undecipherable or imperceptible by obscuring or concealing. Synonyms: obscure, blot out, veil, hide. Examples: "A hidden message." "A veiled threat."

(verb) remove completely from recognition or memory. Synonyms: efface. Examples: "Efface the memory of the time in the camps."

(verb) do away with completely, without leaving a trace.

(adj) reduced to nothingness. Synonyms: blotted out, obliterated.