Angular
In plain terms
A comprehensive, opinionated frontend framework by Google.
Going deeper
Angular is a full-featured framework for building large single-page apps, with built-in routing, forms, and dependency injection, using TypeScript. It's batteries-included.
Under the hood
Its structure and DI suit large teams; the learning curve is steeper than React/Vue, and it uses RxJS heavily.
Examples
Enterprise web apps, large SPAs, dashboards, Google products.
Think of it like...
Like a fully-furnished apartment: everything's included, but you live by its layout.