fandom - definition and synonyms

noun 

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/ˈfændəm/
singularfandom
pluralfandoms
  1. 1
    [uncountable] the state of being a very keen fan of a sports team, band, type of entertainment etc

    After last season I renounced my Chicago Cub fandom.

  2. 2
    [countable/uncountable] the people who are very keen fans of a sports team, band, type of entertainment etc, regarded as a group

    Here’s a show that was somewhat popular among American anime fandom in the very early 1980s.

    She's been active in many fandoms but is probably best known for her artwork in Star Trek.