heat death

noun 0.883

thermodynamic equilibrium

noun 0.565

end of the world

noun 0.546

brain death

noun 0.535

death

noun 0.533

world ending

noun 0.532

cosmological horizon

noun 0.521

extinction

noun 0.521

dark energy

noun 0.516

thermodynamic temperature

noun 0.515

absolute zero

noun 0.514

absolute temperature

noun 0.509

overheat

noun 0.508

big crunch

noun 0.504

thermodynamics

noun 0.503

theory of everything

noun 0.501