IDE
An IDE, or integrated development environment, is a code editor with running, testing, and debugging built into the same app.
What it tells you about a developer
IDE experience is universal among developers, so it carries little signal on its own. A specific IDE can hint at territory: Xcode points to Apple platforms, Android Studio to Android, IntelliJ to Java and Kotlin.
IDE stands for integrated development environment. It bundles the editor together with the other things a developer touches all day: running the code, stepping through it to find bugs, and saving changes to version control. The line between an editor and an IDE has mostly dissolved, because editors like VS Code gain the same powers through extensions. Developers use the two words interchangeably.