spindle - noun

(biology) tiny fibers that are seen in cell division; the fibers radiate from two poles and meet at the equator in the middle

a piece of wood that has been turned on a lathe; used as a baluster, chair leg, etc.

any of various rotating shafts that serve as axes for larger rotating parts

a stick or pin used to twist the yarn in spinning

any holding device consisting of a rigid, sharp-pointed object

spindle - thesaurus

arbor   mandrel   mandril   spike