The first noun indicates a subject area, and the second noun refers to a person who is very enthusiastic about this subject.Previous
addict (heroin) addict (TV) aficionado buff devotee enthusiast fan fanatic fiend freak junkie lover maniac nut stalwart (party) supporter (football/Labour)
Most customers, including the balloon enthusiast Richard Branson, were very happy with the service they received.
Any football fan would be proud to wear the shirt of a great footballing nation like Holland.
He remained a tennis fanatic to the end, watching Wimbledon on television from his hospital bed in Las Vegas.