In September，the dictionary changed the main definition of “geek” from “someone preoccupied with computing” to “a person who is very knowledgeable and enthusiastic about a specific subject”. “‘Geek’ is a great example of a word that has evolved from having a negative meaning to having a positive one.” Ian Brookes，consultant editor to Collins Dictionary told The Guardian.“This change in meaning represents a positive change in views of specialist expertise(专长；专业知识)，and is a result of the influence of technology on people’s lives.”