Why does Dumbledore refer to Voldemort as Lord Voldemort?

Tom calls himself Lord Voldemort and Dumbledore just went with it. In fact Tom is the “official” Lord of the Death Eaters gang. Its just the truth and there is no reason to deny it. However it doesn't mean Albus accepts Tom is the Lord of the entire wizarding community. read more

1 In the film portrayal of Order of the Phoenix, Harry refers to him as Lord Voldemort during Doleres Umbridge's first class. I have not read the books, so it could be there is a canon reason that is not obvious in the films, if not, I will accept a well-reasoned, out-of-universe answer. read more

When Voldemort uses it he does not hence he is able to be defeated. Dumbledore was very powerful and defeated grinwald but always referred to Voldemort as the greatest dark wizard of all time. However if you believe the theory that Voldemort was afraid of Dumbledore due to the fact that he was truly death the one thing that Voldemort feared. read more

When Dumbledore gets the upper hand, Voldemort attempts to possess Harry but finds that he cannot; Harry is too full of that which Voldemort finds incomprehensible, and which he detests as weakness: love. read more