An older sibling is a brother or sister who is born before another sibling. They often take on a role of responsibility and guidance within the family. Older siblings may help with chores, assist with homework, and provide emotional support. Their experiences can serve as valuable lessons for younger siblings. In many families, older siblings can influence their younger siblings' interests and behaviors. They may share hobbies, introduce them to friends, or teach them new skills. The relationship between older and younger siblings can vary, ranging from close companionship to rivalry, but it often plays a significant role in childhood development.