風習

1. Origins, structure, and basic meaning

• Structure: 風習 (ふうしゅう) is a noun for a customary practice maintained within a region or community.
• Basic usage: 風習が異なる makes regional New Year practices the subject of variation, while 風習を若い世代に伝える makes an old tradition what is passed on.

2. Common pitfalls and similar expressions

• Regional variation and generational transmission
  • 地域ごとに風習が異なる says that the practice is not uniform everywhere. 古くからの風習 is also a communal custom passed to a younger generation, not merely a personal habit.