A more thorough explanation:

Definition: A branch is a part of an organization or a family that has split off from the main group. It can also refer to a line of descent from a common ancestor.

Examples:

• The executive, legislative, and judicial branches of the government are all separate parts of the government that have different responsibilities.
• The Taylor branch of the Bradshaw family can be traced back to a common ancestor.

The examples illustrate how a branch can be a separate part of a larger organization or group. In the case of the government, each branch has its own specific duties and powers. In the case of a family, a branch can refer to a specific line of descent from a common ancestor.