# Adjacent Faces Definition

In geometry, **adjacent faces** are defined as **faces having common edges**. In other words, Any **couple of faces distinct from the opposite faces** are known as **adjacent faces**.

For instance, If you have multiple three-dimensional pentagons, all the edges of this shape have adjacent faces.

For a more precise understanding of the concept, check out the example listed below:

**Note:**

If you want to know about adjacent angle, you can use our Adjacent Angle Definition.