Nitwit
The second (and third) word Harry Potter said was "nothing".
The fifth word of Harry Potter and the Half-Blood Prince is 'and'.
No.
Harry Potter. The word "homonymous" means "having the same name".
I am not aware of Harry Potter repeating a certain word or phrase regularly.
The first word in 'Harry Potter and the Half-Blood Prince' is 'it'. The next five words are 'was nearing midnight and the...'.
No where.
The first word is "not".
Harry is a name (like Harry Potter), but if you're talking about the word hairy, it's an adjective.
Each Harry Potter book spans an entire year, in other word, all four seasons.
The title of the book Harry Potter and the Philosopher's Stone changed to Harry Potter and the Sorcerer's Stone for Scholastic in America, because the publishers thought Americans would not be familiar with the term "philosopher's stone."
The word that connects the character Harry and the author Beatrix is "Potter," as in Harry Potter (created by J.K. Rowling) and Beatrix Potter (author of various children's books including "The Tale of Peter Rabbit").