• 1. an evil spirit or devil
• 2. a person, habit, obsession, etc, thought of as evil, cruel, or persistently tormenting
• 3. a person who is extremely skilful in, energetic at, or devoted to a given activity, esp a sport
• 4. ( as modifier )
• 5. a variant spelling of daemon
• 6. a detective or policeman
• 7. a part of a computer program, such as a help facility, that can run in the background behind the current task or application, and which will only begin to work when certain conditions are met or when...

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