The Circle
The circle is one of the four primary conic sections, and it holds special significance in both geometry and real-world applications. Let's break it down systematically:

Explanation
The main meaning of a circle in geometry is a simple yet fundamental concept. A circle is a shape that is perfectly symmetrical and has several unique properties that distinguish it from other geometric figures.
In Maths or Geometry
A circle is a special kind of ellipse in which the eccentricity is zero and the two foci are coincident. A circle is also termed as the locus of the points drawn at an equidistant from the centre. The distance from the centre of the circle to the outer line is its radius.
Main Meaning of a Circle
A circle is defined as the set of all points in a plane that are equidistant from a fixed point. This fixed point is known as the center of the circle, and the constant distance from the center to any point on the circle is called the radius.
In simpler terms, a circle is a round shape where every point along its edge is the same distance from the center point. This property of being equidistant from the center is what defines a circle and gives it its unique characteristics.