AK, AK'D, AK'ed - Avada Kedavra, the Killing Curse or to kill someone via the killing curse.

AD - Albus Dumbledore or, more commonly, Aberforth Dumbledore, brother to Albus.

AP - Aunt Petunia.

CC - Cruciatus Curse.

C!M - A reference to Barty Crouch jnr. when under transformation of the Polyjuice Potion.

COM - Care of Magical creatures the course.

CoS, (CS) - Chamber of Secrets, the second book in the series orA Chamber of Secrets in Hogwarts, hidden by Salazar Slytherin. via one of the girls's bathrooms.

DA - Dumbledore's Army, a group of Hogwarts students led by Harry Potter to learn magical defensive techniques.

DADA - Defense against the Dark Arts, both the subject and the practice.

D'Dore - Dumbeldore, Albus.

DD - Dudley Dursley. DE(s) - Death Eater(s), servants of Lord Voldemort.

DH - Deathly Hallows, the seventh book in the series. Also refers to the actual items themselves.

DIGS - An acronym for: Dumbledore is Giant Squid. A theory that the two characters are one and the same.

DM - Draco Malfoy.

DOM - The Department of Mysteries. DP - Daily Prophet, The. The wizarding world's leading newspaper.

EWE - Epilogue What Epilogue. Refers to stories which ignore the epilogue.

FB (FBAWTFT) - Refers to the book Fantastic Beasts and Where to Find Them.

F&G (F+G) - Fred and George Weasley, older brothers to Ron. See Twins.

GG -Godric Gryffindor. Hogwarts founder.

GH - Godric's Hollow. Town where the Potters were killed.

GP or 12GP or No.12 - Number 12 Grimmauld Place. Sirius Black's childhood home and headquarters of the Order of the Phoenix.

GoF (GF) The Goblet of Fire, Fourth book in series also refers to the actual Goblet of Fire used to choose the champions in book four.

HB - Head Boy.

HBP - The Half-Blood Prince, the Sixth book in series also refers to the actual person who is the Half-Blood Prince.

HE(s) - House Elf (Elves).

HG - Hermione Granger or Head Girl. HOH - Head of House. Refers to the teacher who is the head of one of the houses at Hogwarts.

HP or HJP - Harry Potter the series or Harry James Potter the character.

JP - James Potter.

L&J - Lily and James Potter.

LM - Lucius Malfoy, DE and father of Draco Malfoy.

LP or LE - Lilly Potter or Evans.

LV - Lord Voldemort.

MEM - Mad-Eye Moody.

MM - Minerva McGonagall.

MOM - Either the Minister of Magic or the Ministry of Magic.

MWPP - The Marauders or specifically, Moony (Remus Lupin), Wormtail (Peter Pettigrew), Padfoot (Sirius Black) and Prongs (James Potter).

OBHWF - One big happy Weasley Family.

OotP (OP, OtP) - The Order of the Phoenix, the fifth book in series and also the organisation led by Albus Dumbledore, main focus is defeating Lord Voldemort.

POA (PA) - The Prisoner of Azkaban, the third book in the series.

PP - Peter Pettigrew.

PS - The Philospher's Stone, the first book in series and the actual stone made by Nicholas Flamel.

QTA (QTTA) - Quidditch Through The Ages.

QWC - The Quidditch World Cup.

RL or RJL - Remus (J) Lupin.

ROR - The Room of Requirement.

RR - Rowena Ravenclaw. Hogwarts founder.

RW - Ron Weasley.

S.P.E.W. - Hermione's Society for the Protection of Elvish Welfare.

SS - Hogwart's Potions master Severus Snape or Salazar Slythein, founder of Hogarts OR Sorcerer's Stone (American version of PS).

SWM - Snape's Worst Memory.

TLC - The Leaky Cauldron.

TR or TMR - Tom (Marvolo) Riddle, young Lord Voldemort.

TWT - Triwizard Tournament.

UV - Uncle Vernon.

WT - Wormtail, aka Peter Pettigrew.

WWN - Wizarding Wireless Network.

WWW - Weasleys' Wizard Weezes. F&G's Joke shop.