Auror - a member of an elite team of wizards in the Ministry of Magic. ex. Mad Eye Moody, Mr. Longbottom
Animagi - Ability to turn yourself into an animal
Animagus - A person who can turn themselves into an animal
Apparate - Ability to make yourself move from place to place almost instantly
Apothecary - Shop where magical materials are sold.
Azkaban - A wizard prison
Beater - A Quidditch player that must kit the Bludger with a wooden stick
Bertie Bott's Every Flavor Beans - Wizard Candy... that really has every flavor!
Bezoar - A stone taken from the stomach of a goat that will save you from most poisons
Bludger - A large jet black ball, hurts a lot if you get hit with it
Boggart - Creature that turns into whatever you fear the most
Chaser - A Quidditch player that must score using the Quaffle
Codswallop - Not true, a lie
Cornish Pixies - Electric blue, about 8 inches high with pointy faces and a shrill voice
Dementor - A tall, robed creature who has no soul. Dementors are horrid things, who guard the prison of Azakaban. The dementors literally suck your soul out, in an act know as the Dementor's Kiss.
Diagon Alley - The cultural and business center of the Wizarding World.
Disapparate - Ability to remove yourself from somewhere
Droobles Best Blowing Gum - Can fill a room with bluebell-colored bubbles that refuse to pop for days
Dungbomb - When one of these is set off it stinks up a large area around it
Erised, The Mirror of - A mirror that shows what you desire most, Erised spelt backwards is desire
Floo Powder - When thrown into a fire it can transport a witch or wizard anywhere connected on the Floo network
Flourish and Bott's - the book shop in Diagon Alley
Galleon - A gold piece of wizard money
Gillyweed - A magical herb, giving you gills, to let you breathe underwater.
Godric's Hollow - The hideout of James and Lily Potter when Voldemort was after them
Gnome - Small, leathery looking creature with a large knobby, bald head exactly like a potato
Goblet of Fire - A bewitched object that chooses the contestants for the Triwizard Tournament.
Gryffindor - (1) One of the four greatest wizards of all times, helped construct Hogwarts
(2) A Hogwarts house section
Grim - A giant spectral dog that haunts graveyards
Gringotts - The wizard bank
Grunnings - A muggle company that makes drills; Mr. Dursley works for this company
Hippogriff - Half horse, half bird with gleaming coats of different colors
Hinkypunk - A little one-legged creature that looks like it is made of wisps of smoke; holds a lantern in it's hand and lures travelers into bogs
Hogwarts - School for witches and wizards
Hogwarts Express - The train that brings Hogwarts students to Hogwarts
Howler - A letter that lets out yells one-hundred times louder than usual
Hufflepuff - (1) One of the four greatest wizards of all times, helped construct Hogwarts
(2) A Hogwarts house section
Hungarian Horntail - A type of dragon
Invisibility Cloak - A cloak that makes anything beneath it invisible
Kappa - Creepy water-dwellers that look like scaly monkeys with webbed hands
Keeper - The "Goalie" in the wizard's game of quittich. ex. Oliver Wood
Knut - A bronze piece of wizard money; 29 Knuts to a Sickle
Levitating Sugar Balls - Wizard Candy, Suck on them and you can levitate a few inches in the air!
Mandragora - See Mandrake
Marauders Map - A map that shows every detail of the Hogwarts castle
Mandrake - Is a powerful restorative, they form an essential part of most antidotes; The cry of a full grown Mandrake is fatal to anyone who hears it
Muggle - A person with absolutely no magical powers
Patronus - A spell that can ward of dementors; Every wizard's Patronus has a different shape
Pepper Imps - Breath fire on your friends
Quaffle - A large red ball, about the size of a soccer ball; used in quidditch (below)
Quidditch - A wizard game played on broomsticks
Ravenclaw - (1) One of the four greatest wizards of all times, helped construct Hogwarts
(2) A Hogwarts house section
Red Caps - Nasty goblin like creatures that lurk wherever there had been bloodshed
Remembrall - Tells you if you have forgotten something to do
Seeker - The most important Quidditch player, has to catch the Snitch
Sickle - A silver piece of wizard money; 17 Sickles to a Galleon
Slytherin - (1) One of the four greatest wizards of all times, helped construct Hogwarts
&blacknbsp; (2) A Hogwarts house section
Snitch - A small golden ball with silver wings
Squib - A wizard born without magical powers
Sugar Quills - Wizard Candy- Suck them in class and it looks like you are just thinking of what to write!
Toothflossing Stringmints - Cleans your teeth like floss
Triwizard Tournament - The subject of Book 4, a tournament between the three schools of witchcraft and wizardry. It includes different tasks and each of the (usually) three contestants are scored.
Unicorn - a mystical creature, somewhat like a horse with a horn, unicorn blood makes you live longer, even if an inch from death, but if you drink the blood you will be cursed from the moment the blood touches your lips.
Venemous Tentacula - Spiky, dark red plant with long feelers
Voldemort - "He Who must not be named", "The Dark Lord", Tom Marvolo Riddle
Whomping Willow - A very violent tree that stood alone in the middle of the school grounds
Wand - The essential wizarding tool. Each wizard's wand is different. Most range in length from 9 to 16 inches. They are made out of wood, and contain dragon heartstring, unicorn hair, or a phoneix feather for a core. In Book 4, Fleur Delacour's wand had a veela hair.
Zabini, Blaise - student sorted into Slytherin at Hogwarts
Zograf - Keeper on the Bulgarian National Quidditch Team
Zonko's - the joke shop in Hogsmeade