THESAURUS
die out
be annihilated, be consumed, be destroyed, be gone, be no more, be wiped out, become extinct, burn out, cease, cease to be, cease to exist, dematerialize, depart, die, die away, disappear, dispel, disperse, dissipate, dissolve, do a fade-out, dwindle, erode, evanesce, evaporate, exit, expire, fade, fade away, fade out, fizzle, fizzle out, flame out, flee, fly, go, go away, go out, hide, leave no trace, leave the scene, melt, melt away, pass, pass away, pass out, perish, peter out, retire from sight, sink, sink away, suffer an eclipse, vanish, vanish from sight, waste, waste away, wear away
ROGET THESAURUS
die out
Inexistence
VB
not exist, have no existence, be null and void, cease to exist, pass away, perish, be extinct, become extinct,
die out, disappear, melt away, dissolve, leave not a rack behind, go, be no more, die, annihilate, render null, nullify, abrogate, destroy, take away, remove, obliterate, extirpate.
Insulation
VB
go out,
die out, burn out, fizzle, extinguish, damp, slack, quench, smother, put out, stamp out, douse, snuff, snuff out, blow out, fireproof, flameproof.