A younger sibling is a brother or sister who is born after another sibling. They often look up to their older siblings for guidance and support. Younger siblings may share a close bond with their older siblings, engaging in play and learning from their experiences. In many families, younger siblings can experience a mix of admiration and rivalry. They may seek attention and approval from their parents and older siblings, which can lead to both positive and challenging dynamics. This relationship can shape their social skills and personality as they grow up, influencing their interactions with peers and family members.