Final answer:
After Elie's father died, 'Free at last' means that Elie's father is finally free from the suffering and pain of the Holocaust.
Step-by-step explanation:
After Elie's father died, 'Free at last' means that Elie's father is finally free from the suffering and pain of the Holocaust. It is a metaphorical expression used to convey the relief and liberation that death brings in such a traumatic and cruel context. Elie's father's death represents the end of his suffering and the possibility of finding some sort of peace and freedom.