In the anime Bleach what is a Shinigami's sword called?!

Question: Zanpaktou. Or in the English version Soul Slayer.

Answers: Zanpaktou. Or in the English version Soul Slayer.

Zanpakto or something.

Zanpaktou, though different Shinigami have different names for theirs. (ex. Ichigo's is Zangestu)

zanpaktou

Zanpaktou but each sword has a diff. name