The moon is a perfect circle.

The Arctic Circle is a region characterized by extreme environmental conditions.

The Antarctic Circle is an imaginary line located at 66.5 degrees south of the Equator.

I was lucky enough to get tickets for the dress circle seats.

After many years, I finally came back to my hometown, completing a full circle.

The great circle is the shortest distance between two points on the surface of a sphere.

Our family circle includes our parents, siblings, and grandparents.

I always get confused when driving through a traffic circle.

The lack of job opportunities creates a vicious circle of poverty and crime.

She wore a delicate circlet of flowers in her hair.