Real Dictionary

cone
countable noun: A cone is a shape with a circular base and smooth curved sides ending in a point at the top.
countable noun: A cone is the fruit of a tree such as a pine or fir.

cone in American English
a flat-based, single-pointed solid formed by a rotating straight line that traces out a closed-curved base from a fixed vertex point that is not in the same plane as the base; esp., one (right circular cone) formed by tracing a circle from a vertex perpen
to shape like a cone or a conical segment
noun: a solid whose surface is generated by a line passing through a fixed point and a fixed plane curve not containing the point, consisting of two equal sections joined at a vertex

cone in British English
noun: a geometric solid consisting of a plane base bounded by a closed curve, often a circle or an ellipse, every point of which is joined to a fixed point, the vertex, lying outside the plane of the base. A right circular cone has a vertex perpendicularly abov