Terms

Accidental Magic Reversal Squad - Group that reverses bad magic.

Aurors - Dark wizard catchers. 

Bonder - The person who puts the Unbreakable vow apon the people. Bellatrix is the bonder for Narcissa and Snape's Vow.

Death Eater - The wizards who follow Voldemort. Some bear the Dark Mark on their arms which when touched by Voldemort on one other skin they are suppose to summon to him.

Dumbledore's Army - Also D.A. A secret meeting held in the Room of Requirement. Harry's the head person. He teaches the group defense spells and curses.  Made up of 28 students who are loyal to Dumbledore. They people in the group are Neville, Dean, Lavender, Parvati, Padma, Cho, Luna, Katie Bell, Alicia Spinnet, Angelina, Colin, Dennis, Ernie, Justin, Hannah, Anthony, Michael, Terry, Ginny, Fred, George, Lee, Zacharis Smith, Susan Bones, Marietta, Ron, and Hermione.

Git - A British slang word for an idiot.

Gobbledegook - Goblin Language: Bladuak means Pick ax.

Grim - A giant black dog taken to be a death omen.

Gryffindor Prefects - Ron Weasley and Hermione Granger.

Gurg - Title of giant chief.

Half-Blood - If anyone in the family is a muggle. Example, Harry is Half blood because his mom's sister and parents are muggles. Even though he was born to wizards he is still a half blood. Voldemort because his father was a muggle.

Howler - A letter in a red envelope which, bursts opened even if not opened by the receiver,  emits an explosive roar of sound. The voice of the person who sent it can be heard piercing the air. Usually sent by parents when they have a complaint to their children. After delivery of a Howler, the red envelope bursts into flames.

Hufflepuff Prefects - Hannah Abbott and Ernie Macmillan.

Inquisitorial Squad - A select group of students who support the Ministry of Magic, distinguished by a tiny silver "I" badge; handpicked by professor Umbridge They have power to deduct points from the various houses. Draco Malfoy is a member.

Invisibility Cloak - Long and silvery; Harry inherited it from his dad.

Judges in the Triwizard Tournament - Ludo Bagman, Barty Crouch, Percy, Madam Maxime, Karkaroff, Dumbledore.

Kwikspell - A correspondence course in beginner's magic.

Lord Thingy - What Fudge Refers to Voldemort as.

Mediwizards - Medics who take care of Injuries at the Quidditch cup.

Mudblood - When you are born to muggle parents but you are a witch or wizard. You are born with few powers. Example, Hermione Granger.

Order of the Phoenix - A loyal group of followers led by Dumbledore; an organization devoted to stopping Voldemort from getting more followers.

Pensieve - A place to put your thoughts and can examine them at one's leisure.

Puddlemere United - Oliver Wood was taken on by this place.

Ravenclaw Prefects - Anthony Goldstein and Padma Patil

Slythern - Draco Malfoy and Pansy Parkinson.

Triwizard Tournament - Established 700 years ago as a friendly competition between the three largest European schools of wizardry, Hogwarts, Durmstrang and Beauxbatons. Winners receive Triwizard Cup and 1,000 galleons.

Unbreakable Vow, The - A promise made between wizarding folks. If you do no complete the promise you die. Snape and Narcissa make an Unbreakable Vow.

Unspeakables - Wizards who work in the Department of Mysteries.

W.W.N - Wizarding Wireless Network. What Wizards and Witchs listen to.