Definitions:
a solid or hollow object which tapers from a circular or roughly circular base to a point

the dry fruit of a conifer, typically tapering to a rounded end and formed of a tight array of overlapping scales on a central axis which separate to release the seeds

one of two types of light-sensitive cell in the retina of the eye, responding mainly to bright light and responsible for sharpness of vision and colour perception.

separate off or mark a road with traffic cones