# ATTREDEF Command
[GstarCAD 2022](Help%20System/GSTARCAD/2022/Index.md) → [Commands](Help%20System/GSTARCAD/2022/Commands/(Commands).md) → [A](Help%20System/GSTARCAD/2022/Commands/A/(A).md)
## Function Description:
Redefines a block and updates associated attributes.
## Command Access:
> **Icon: /**
> **Menu: /**
> **Ribbon: /**
> **Toolbar: /**
> **Command:** ATTREDEF
> **Alias: /**
## Command Prompts:
Enter name of the block you wish
to redefine: