Daily Prophet: The wizards’ newspaper.
Death Eaters: Group of dark wizards who are Voldemort’s followers.
Dementors: Dark, cloaked, faceless soul-sucking creatures from Azkaban.
Diagon Alley: Magical twisting street of shops where wizards and witches buy supplies.
Floo Powder: Magical, glittering powder, when sprinkled, zaps a wizard or witch to wherever they want to go.
Forbidden Forest: Forest surrounding Hogwarts. Home to unicorns and other mystical creatures. Out of bounds for Hogwarts students.
Galleons: Wizard currency. Potter’s inherited a potful of these from his parents.
Gringotts: Wizards’ bank.
Gryffindor, Hufflepuff, Ravenclaw and Slytherin: The four student houses at Hogwarts, named after the school’s four founders.
Hogwarts School of Witchcraft and Wizardry: Boarding school where Harry and friends learn their craft—and much more. The school’s motto: "Never tickle a sleeping dragon".
Invisibility Cloak: A "silvery gray" cape that makes its wearer invisible.
Marauder’s Map: Map showing every detail of Hogwarts and the castle grounds.
Ministry of Magic: Council whose main job is to keep wizards and witches a secret from muggles.
Mirror of Erised: Whoever looks into this mirror sees their greatest desire reflected at them.
Mudblood: A mean name to call someone who is muggle-born, like Hermione.
Muggle: A non-magical person. Like most of you reading this glossary.
Nimbus 2000: The super-duper fast-flying broomstick that helps Harry become an ace seeker of the golden Snitch in Quidditch.
O.W.L.s: Ordinary Wizarding Levels. Exams Hogwarts students must take at age 15 .
Platform 9 3/4: The magical platform (invisible to muggles) at London’s King’s Cross station where Hogwarts students board the Hogwarts Express.
Quidditch: The wizards’ favourite game. Involves chasing magical balls flying around on broomsticks. Whoever gets the Snitch is the winner.
Sorting Hat: Patched and frayed wizards’ hat which determines which house a student belongs to. It sings and has mood swings.