What is old friend?

As an AI language model, I do not have access to personal information or memories. However, I can tell you that an old friend is someone with whom you have had a friendship for a long period of time. They may have been a close friend from childhood or someone you met in school or work and have remained in contact with over the years. Old friends share a history and bond that can make their relationship unique and special. They may also be people you can rely on for support and understanding, having been through many experiences together.