What is bridge in Web3?

Excuse me, could you possibly clarify what the term "bridge" means in the context of Web3? I've been hearing a lot about it lately but am still a bit hazy on the details. Could you elaborate on its functionality, purpose, and how it fits into the broader ecosystem of Web3? I'm particularly interested in understanding how bridges facilitate the interoperability between different blockchains and how they might be used in real-world applications. I'd appreciate any insights you could provide on this topic. Thank you for your time.