What is the ERC-20 address?

Excuse me, could you please clarify what an ERC-20 address is? I've heard this term mentioned frequently in the cryptocurrency community, but I'm not entirely sure of its specific meaning. Is it a unique identifier for a particular type of token or contract on the Ethereum blockchain? If so, how does it differ from other types of addresses in the crypto world? Additionally, how can I obtain or use an ERC-20 address? Would it be possible for you to provide a brief explanation or overview of ERC-20 addresses, so I can better understand their role and significance in the cryptocurrency ecosystem? Thank you for your assistance.