IDLG stands for 'Independent Directorate of Local Governance' and it is a governmental organization in Afghanistan. Synonyms for IDLG can be 'autonomous directorate for regional authorities' or 'self-governing entity for local administration'. Other options could include 'independent commission for municipal leadership' or 'self-directed agency for local governance'. However, it is important to note that these synonyms may not accurately reflect the specific responsibilities and functions of IDLG in Afghanistan. It's always important to research and understand the unique context and nuances of a specific organization or term before attempting to use synonyms.