Added 9 October 2026 fandom /ˈfændəm/ noun Categories: SocietyRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about fandom at Wordnik → Where our words come from → The fans of a sport or famous person. Related Words: fanhoodfanbasefanacfankindfanshipbandomsubfandomfanclubfansitefanlation Back to today's word