---
tag: 7KWNW601CS
kind: concept
name: Sibling
sources:
  - wikipedia: en:325802@r1373839425
    locator: Glossary of graph theory, section S
    note: adopted
    mention: wikipedia://en/325802#WJ5P
    sections: [Summary]
inventory: [VB4MK2JDEB]
---

## Summary

In a rooted tree, a sibling of a vertex $v$ is a vertex which has the same parent vertex as $v$.