Polyneikes
Polyneikes' body lies rotting on the earth outside the walls of Thebes where he was killed by his brother. His rotting corpse is a symbol of the horror that Kreon has sentenced him to and what could be the punishment of anyone who attempts to attack Thebes: the stripping of their burial rights which allows them to pass on to the afterlife.
Tragedy
The Chorus is a device used by the playwright in order to create a clear voice for the audience and what they feel. It is a symbol in this play that there will be not hope as it is clearly explained that this is a tragedy and in tragedy no one escapes the fate of death.
Edict
The edict issued by Kreon is that no one is to bury Polyneikes. This is a symbol of his use of political power to maintain control of the city of Thebes and to keep it from being besieged again by outsiders. It is also the symbol of his arrogance as he will not recall it.
Eurydice
Queen Eurydice kills herself once she finds out that her son Haemon is dead after Kreon has sentenced Antigonick to death. This is a symbol that she will not stand by Kreon's side after what he has done. His actions are so great that he's caused her death.
Tomb
The stone tomb in which Antigonick and Haemon die is a symbol of Kreon having become cold and hard and immovable in his role as King. Because of this he creates only death for the ones he loves and is left to live with their lives hanging over him.
