Who is the friendfyre in hp7?

In "Harry Potter and the Deathly Hallows," the term "Fidelius Charm" is often confused with "Friendfyre," but there is actually no "Friendfyre" mentioned in the series. However, if you're referring to "Fiendfyre," it is a magical fire that can consume anything in its path and is extremely difficult to control. It is depicted as a powerful and dangerous form of magical fire that can take on a life of its own, and it plays a significant role during the Battle of Hogwarts.