A point where light rays converge after being refracted or reflected by a lens or mirror, resulting in a clear image.

The center of attention or interest in a discussion or event, often highlighting a specific problem or issue that captivates many people's thoughts.

A fundamental point in geometry, specifically in conic sections, from which distances are measured to define the shape of the curve.

In the context of strategy games like shogi, a specific location where multiple pieces exert influence or control.