fandom

As nouns the difference between fanatic and fandom

is that fanatic is a person who is zealously enthusiastic for some cause, especially in religion while fandom is the fans of a sport, activity, work, person etc, taken as a group.

As an adjective fanatic

is fanatical.

As nouns the difference between fanfiction and fandom

is that fanfiction is while fandom is the fans of a sport, activity, work, person etc, taken as a group.

As a noun fandom

is the fans of a sport, activity, work, person etc, taken as a group.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between audience and fandom

is that audience is hearing; the condition or state of hearing or listening while fandom is the fans of a sport, activity, work, person etc., taken as a group.

As a proper noun wiki

is (proscribed) wikipedia.

As a noun fandom is

the fans of a sport, activity, work, person etc, taken as a group.

As nouns the difference between fandom and think

is that fandom is the fans of a sport, activity, work, person etc., taken as a group while think is an act of thinking; consideration (of something).

As a verb think is

to ponder, to go over in one's head.

As nouns the difference between fanfic and fandom

is that fanfic is fan fiction while fandom is the fans of a sport, activity, work, person etc., taken as a group.

As nouns the difference between community and fandom

is that community is a group sharing a common understanding and often the same language, manners, tradition and law. See civilization while fandom is the fans of a sport, activity, work, person etc., taken as a group.

As nouns the difference between fandom and spectator

is that fandom is the fans of a sport, activity, work, person etc, taken as a group while spectator is one who observes an event; an observer.