#custom.practice__tradition  a specific practice of long standing
  supertype:  practice.cognition  knowledge of how something is customarily done: "it is not the local practice to wear shorts to dinner"
  subtype:  habit.custom__wont  an established custom; "it was their habit to dine at 7 every evening"
  subtype:  institution.custom  a custom that for a long time has been an important feature of some group or society; "the institution of marriage"; "he had become an institution in the theater"

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