subculture
noun /ˈsʌbkʌltʃə(r)/
  /ˈsʌbkʌltʃər/
(sometimes disapproving)- the behaviour and beliefs of a particular group of people in society that are different from those of most people- the criminal/drug/youth subculture
 Oxford Collocations DictionarySubculture is used after these nouns:- youth