Database replication is like making a backup copy of important documents so that you always have a spare in case one is lost or damaged. In the digital world, it's a process where data from one database is duplicated and synchronized with another database. This ensures that the same information is available in multiple places, reducing the risk of data loss and improving data availability. It's a bit like having a second set of keys to your house kept in a safe place. Database replication helps in maintaining data consistency and reliability, making sure that even if one database experiences issues, the information remains accessible from the replicated copy.