**Sibling** — a brother or sister, one of a person's brothers or sisters.
Here are some examples of using the word «sibling»:
1. My **sibling** and I have a great relationship. We always support each other and enjoy spending time together.
2. She has two younger **siblings** who are both very talented musicians.
3. My **siblings** and I often argue about who gets to use the computer first in the morning.
4. He is the oldest of three **siblings**.
5. My **sibling's** wedding was one of the most beautiful events I have ever attended.
6. They are very close **siblings** and always travel together.
7. My **siblings** and I grew up in a small house, but we always had a lot of fun.
8. She has an older **sibling** who is a doctor and a younger sibling who is a teacher.
9. My **siblings** are both married and have children, so I am now an aunt and uncle.
10. He and his **siblings** often go camping together in the summer.