It's okay, just ask, we all start from knowing nothing. 😉

Relay is Nostr's server, used to store and retrieve user events and data. It is decentralized, and everyone can run their own relay. Your data can be stored on as many relay addresses as you add through the client.
https://nostrcheck.me/media/5824c03d29d372b3277cc0b6cb32d4541102a7af0865bda38fbcedec4d454efa/a779f31002daa448457a51f86de670fa2223c8f1e77b921eb1a460390eeac0d6.webp