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+---
+title: Traits
+description: Learn how to use traits in the Noir programming language.
+keywords: [Noir programming language, traits, impl, implementations, interfaces]
+---
+
+Traits in Noir are used to define shared behavior that can be implemented by different types. They follow the semantics of Rust, although currently only a minimal subset of Rust's functionality is supported. 
+
+## Limitations
+Traits are still in active development. We aim to eventually support as large of a subset of the Rust trait system as possible, but currently the following major features are missing:
+
+- Associated types
+- Associated constants
+- Generic traits
+- Implementing traits for generic types
+- Trait bounds are only supported for free functions
+- Builtin traits:
+    - Function Traits (`Fn`)
+    - Operator traits (`Add`, `Sub`, `Eq`, ...)
+
+For an up-to-date list of supported features on the `master` branch, visit [the Traits tracking issue](https://github.com/noir-lang/noir/issues/2568).
+
+
+## Defining a trait
+A trait is defined using the `trait` keyword followed by the trait's name. Inside the `trait` block you can define method signatures without providing implementations:
+
+```rust
+trait MyTrait {
+    fn get_field(self) -> Field;
+    fn set_field(self, field: Field);
+}
+```
+
+## Implementing a trait
+
+To implement a trait for a particular type, you use the `impl` keyword followed by the trait's name. Inside the `impl` block you provide implementations the methods of that trait.
+
+```rust
+struct MyStruct {
+    value: Field,
+}
+
+impl MyTrait for MyStruct {
+    fn get_field(self) -> Field {
+        self.value
+    }
+    fn set_field(self, field: Field) {
+        self.value = field;
+    }
+}
+```
+
+A single type can implement multiple traits. This allows you to define and reuse different sets of behavior for the same type.
+
+```rust
+impl AnotherTrait for MyStruct {
+    // Implement methods for AnotherTrait
+}
+```
+
+## Using trait methods
+
+If you have an instance of a type implementing a trait, trait methods can be used like regular `impl` methods:
+```rust
+fn uses_foo() {
+    let foo = Foo{ value: 100 };
+    assert(foo.get_field() == 100);
+}
+```
+
+You can also use trait methods inside a generic function, if you declare a trait bound. You can require that a single generic named type implements multiple traits by separating them with a `+`:
+
+```rust
+struct AnotherTrait {
+    fn another_method(self);
+}
+
+fn some_function<T>(t: T) where T: MyTrait+AnotherTrait {
+    // Those methods come from MyTrait:
+    let old_value = t.get_field();
+    t.set_field(old_value * 2);
+
+    // but since T also implements AnotherTrait, you can use its methods as well:
+    t.another_method();
+}
+```
+
+
+## Static trait methods
+
+So far all methods shown have used the `self` parameter. If you omit it, you can create a static function that doesn't need an instance of the object.
+```rust
+trait Default {
+    fn default() -> Self;
+}
+
+impl Default for Foo {
+    fn default() -> Foo {
+        Foo { value: 100 };
+    }
+}
+
+// You can use the static method directly from the type:
+fn uses_default() {
+    let foo = Foo::default();
+}
+
+// You can also use the static method in a generic function
+fn some_function<T>(t: T) -> T where T: Default {
+    let t = T::default();
+    t
+}
+
+
+```
+
+## Default method implementations
+Inside the trait block you can optionally provide default implementations for some of the methods. Trait `impl`s are allowed to omit methods with default implementations:
+
+```rust
+trait YetAnotherTrait {
+    fn a_method(self) -> Field {
+        1234 // default implementation!
+    }
+}
+
+impl YetAnotehrTrait for Foo {
+    // the implementation for `a_method` can be omitted, and the default will be used.
+}
+
+fn uses_default_method() {
+    let foo = Foo{ value: 100 };
+    assert(foo.a_method() == 1234);
+}
+```
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diff --git a/sidebars.js b/sidebars.js
index 205ecb7..a1a1174 100644
--- a/sidebars.js
+++ b/sidebars.js
@@ -63,6 +63,7 @@ const sidebars = {
         'language_concepts/comments',
         'language_concepts/distinct',
         'language_concepts/shadowing',
+        'language_concepts/traits',
       ],
     },
     {