An Entry Point in [[webpack]] is the starting point for Webpack to figure out and build the dependency tree. Usually there's a single entry point, which in turn produces a single bundle file.
Multiple entry points can be set, which creates multiple bundle files with their own dependency trees. Instead of just having index.html and index.js as your only entry point, you can have a separate bundle for about.html (about.js). The page then only needs to load the specific, smaller bundle.
This is a useful avenue for [[20220911060950-code-splitting]], although it has its downsides. Namely that duplicated modules exist across multiple bundles.