"Sister" refers to a female sibling, someone who shares at least one biological or legal parent with another person. Sisters can have various relationships, ranging from close companionship to rivalry. They often grow up together, sharing experiences, memories, and family traditions. In many cultures, the bond between sisters is celebrated and valued. Sisters may support each other through life's challenges and milestones, such as education, marriage, and parenthood. The term can also extend to close friends or members of a community, such as in religious contexts, where women may refer to each other as sisters to signify a strong bond.