Defense Against the Dark Arts
The letters D.A. stood for this.
Dumbledore's Army
Potion used by Harry, Ron, and Hermione to impersonate Slytherin students.
Polyjuice Potion
Minerva McGonagall
This wand motion is used for the levitation charm "Wingardium Leviosa."
Swish and Flick
This friendly matron of Hufflepuff teachers Herbology.
Pomona Sprout
The three Unforgivable Curses
Imperio, Crucio, and Avada Kedavra
Harry was successful in his 6th year potions class due to notes scribbled in his book by this nick-named person.
The Half-Blood Prince
The Transfiguration challenge guarding the Sorcerer's Stone involved a life-sized version of this game.
Wizard Chess
This charm is used to prevent Neville from tattling in the first book.
Petrificus Totalus
This crying plant's roots are used to cure wizards and witches who've been petrified.
Mandrake
This candy is used to cure the after effects of a dementor.
Chocolate
This stone from the stomach of a goat was used to save Ron Weasley after his poisoning.
bezoar
Nymphodora Tonks possesses this rare form of Transfiguration magic, allowing her to change her appearance at will.
Metamorphmagus
This charm is used to extinguish the Lumos charm.
Nox
Hermione Granger summons this when she and her friends are trapped in Devil's Snare.
Blue flames
Name all seven DADA teachers from the books.
Quirinus Quirrell, Gilderoy Lockhart, Remus Lupin, Barty Crouch Jr./Mad-Eye Moody, Dolores Umbridge, Severus Snape, Amycus Carrow
Name two of the four potions displayed in Slughorn's first lesson.
Veritaserum, Polyjuice, Amortentia, Felix Felicis
There are four unregistered animagi mention in the books. Name them.
James Potter, Sirius Black, Peter Pettigrew, Rita Skeeter
Before Malfoy summons a snake in dueling club, he and Harry exchange attacks. Name either of them.
Rictusempra, Tarantallegra
Dobby steals this plant from Professor Snape in order to aid Harry in the Triwizard Tournament.
Gillyweed
This creature was in a tank on Lupin's desk in Harry's third year.
Grindylow
Hermione Granger stole these two ingredients from Snape in order to create Polyjuice Potion.
Boomslang skin and Bicorn horn
This is Gamp's first Law of Elemental Transfiguration.
You cannot create food unless food already exists.
During Harry's 2nd year, there is a rumor that Charms Master Professor Flitwick is a champion at this.
Dueling
Neville's prized plant possession.
Mimbulus Mimbletonia