Umbridge, the surname of Dolores Umbridge the Defence Against the Dark Arts teacher in the fifth book.
There are also various spells such as the Unbreakable Vow, Unbreakable Charm and Undetectable Spell.
yeti (see ockheart's book year with the yeti in chamber of secerets)
A little, like the H word and D word
the hanged man
Gillyweed
Grindylows.
In Harry Potter trainers is another word for sneakers, that's what they call them in England.
Snake Slytherin Snape Stairs
The second (and third) word Harry Potter said was "nothing".
The fifth word of Harry Potter and the Half-Blood Prince is 'and'.
No.
I am not aware of Harry Potter repeating a certain word or phrase regularly.
Harry Potter. The word "homonymous" means "having the same name".
No where.
Melodramatically is a 16 letter word. It begins with the letter me.
The first word in 'Harry Potter and the Half-Blood Prince' is 'it'. The next five words are 'was nearing midnight and the...'.
The first word is "not".
Nitwit
A word for patient that begins with the letter a: accommodating.