…の種類をめぐり囲んでいる、回る、が基本義。物の内側をあちこち回る移動や、物の付近の領域にある状態を示す。値の付近を表すことから、およその意味が生まれる。
They put a high fence around the garden.
The children set around the table. She put the
gold medal around her neck. The earth revolves around the sun. He went around the corner.
My birthday is just around the corner. We walked around Manhattan. Bill opened the door and
looked around the room. That shop has a nice selection of wines from all over the world.