subculture
US /ˈsʌbˌkʌl.tʃɚ/
UK /ˈsʌbˌkʌl.tʃɚ/
1.
a cultural group within a larger culture, often having beliefs or interests at variance with those of the larger culture
:
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The punk subculture emerged in the 1970s.
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Online gaming has developed its own distinct subculture.