taper - noun

a convex shape that narrows toward a point

the property possessed by a shape that narrows toward a point (as a wedge or cone)

a loosely woven cord (in a candle or oil lamp) that draws fuel by capillary action up into the flame

stick of wax with a wick in the middle

taper - verb

• diminish gradually
• give a point to

taper - thesaurus

candle   point   sharpen   wick