What is definition of upstander?

An upstander is someone who actively chooses to take a positive action in the face of injustice or wrongdoing, rather than passively standing by and being a bystander. Upstanders work to create positive change and protect the rights of others, often at personal risk or cost. The term "upstander" is commonly used in the context of bullying or discrimination, where individuals are encouraged to stand up for themselves and others. Being an upstander requires courage, empathy, and a commitment to social justice. When individuals come together to act as upstanders, they can create powerful movements and bring about lasting change.