周囲

1. Origins, structure, and basic meaning

• Structure: 周囲(しゅうい) is a noun for the perimeter of a place or object or for its nearby surroundings.
• Basic usage: Walking around a perimeter appears in 湖の周囲を歩く, while nearby people are 周囲の人々.

2. Common pitfalls and similar expressions

• Perimeter and people nearby
  • It can mean the outer area around an object or the people and environment near a particular point.
• Route and range
  • Use 周囲を for the route traveled and 周囲の人々 for people belonging to the surrounding area.