## Vocabulary {#vocabulary} | Composable. | @Composable component | component | | ----------------- | ---------------------- | ----------------------- | | Any `@Composable` | `@Composable` function | Short for `@Composable` | : function : that returns Unit and : component : : : emits ui : : | Framework Author | Developer | User | | --------------------------- | ---------------------------- | ------------- | | Library author that creates | Developer using components | User of a app | : components or other : from a library to build apps : : : composable APIs for use by : for users. : : : developers : : : Framework advice primarily targets authors of `androidx.core` libraries, but is intended to be generally applicable to other library authors.