Dictionary (New Word): Interface

src/content/dictionary/interface.mdx

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+---
+layout: ../../layouts/word.astro
+title: "Interface"
+---
+
+An interface is a defined boundary or contract that specifies how different software components or systems communicate with each other. It outlines a set of methods, properties, or behaviors that a class or module must implement without dictating how these are executed internally.
+
+In programming, interfaces enable abstraction and help separate the "what" from the "how." They allow developers to write flexible and reusable code by ensuring different parts of a program can interact through a common set of rules, regardless of their internal implementation.
+
+Example: In Java, an interface might declare methods that a class must implement:
+
+```java
+public interface Vehicle { 
+    void start();
+    void stop();
+}
+```
+
+Any class implementing Vehicle must provide its own versions of start() and stop().