A series of characters that identify where crypto lives. It’s its home! You get your address from making a wallet. In some cases, a wallet can have more than one address. Addresses can usually be thought of as components to a wallet. Generally safe to share your address as they’re designed somewhat like a one way street. You can send crypto to an address, but can’t really take from it. You can usually see all past transaction history with an address however. And people can spam addresses with a bunch of small transactions. You’d share your address to receive crypto.