Open English Wordnet
Nouns
(n)tapera convex shape that narrows toward a point (n)taperthe property possessed by a shape that narrows toward a point (as a wedge or cone) (n)wick, tapera loosely woven cord (in a candle or oil lamp) that draws fuel by capillary action up into the flame Verbs
(v)taperdiminish gradually“Interest tapered off”