Which Harry Potter word is now in the Oxford English Dictionary?

• Hogwarts
  In 2003, the OED added "muggle," which the dictionary defines as "a person who possesses no magical powers ... a person who lacks a particular skill or skills, or who is regarded as inferior in some way."
• Voldemort
  In 2003, the OED added "muggle," which the dictionary defines as "a person who possesses no magical powers ... a person who lacks a particular skill or skills, or who is regarded as inferior in some way."
• Muggle
  In 2003, the OED added "muggle," which the dictionary defines as "a person who possesses no magical powers ... a person who lacks a particular skill or skills, or who is regarded as inferior in some way."