THESAURUS
Efface
annul, black out, blot, blot out, cancel, cross out, dele, delete, eliminate, eradicate, erase, exclude, expunge, extirpate, obliterate, raze, rub out, rule out, scratch, scratch out, sponge, sponge out, strike out, wipe out
ROGET THESAURUS
Efface
Disappearance
VB
disappear, vanish, dissolve, fade, melt away, pass, go, avaunt, evaporate, vaporize, be gone, leave no trace, leave 'not a rack behind', go off the stage, suffer an eclipse, undergo an eclipse, retire from sight, be lost to view, pass out of sight, lose sight of, efface.
Oblivion
VB
forget, be forgetful, fall into oblivion, sink into oblivion, have a short memory, have no head, forget one's own name, have on the tip of one's tongue, come in one ear and go out the other, slip memory, escape memory, fade from memory, die away from the memory, lose, lose sight of, fail to recall, not be able to recall, unlearn, efface, discharge from the memory, consign to oblivion, consign to the tomb of the Capulets, think no more of, cast behind one's back, wean one's thoughts from, let bygones be bygones.
Obliteration
VB
efface, obliterate, erase, raze, rase, expunge, cancel, blot out, take out, rub out, scratch out, strike out, wipe out, wash out, sponge out, wipe off, rub off, wipe away, deface, render illegible, draw the pen through, apply the sponge, be effaced, leave no trace, leave not a rack behind.