Intersection of the sphere and a plane which passes through the center point of the sphere.
1
The game of tennis is one great circle that never quite closes.
2
We were floating in the great circle of the systems and the suns.
3
The crowd were seated about it on the grass in a great circle.
4
So the people sat in a great circle round the fire and listened.
5
The rest stood at equal intervals in a great circle round the cross.