Maniac | Mean of maniac in English Dictionary

/ˈmeɪniˌæk/

• Noun
• someone who is violent and mentally ill
1. The movie he rented was about a maniac [=madman, lunatic] who goes on a murderous rampage.
2. a homicidal maniac
• a person who behaves in a very wild way
1. He's a complete maniac when he's playing football.
2. She drives like a maniac. [=she drives in a very reckless and dangerous way]
• a person who is extremely enthusiastic about something
1. His friends are all sports maniacs. [=fanatics]
2. a movie maniac [=freak]