In religious art, circles can symbolize eternity.

A circle in the square symbolizes a dryer.

The blue circle symbolizes the unity of this country after the attacks.

The circle symbolized the equality of importance of each man, woman and child in the achievement of the task.

The circle in the middle possibly symbolizes a container for harvest.

The outer circle in the diagram symbolizes the cyclic nature of data mining itself.

The circle symbolized the band, the three lines the individual members, and the intersecting line the common thread of creativity which connected them.

Of these the circle and the sphere symbolized supreme perfection.

The circle symbolizes the "total process of law."

A circle symbolizes unity, while an oak leaf means strength.