rush candle vs taper

rush candle and taper both are nouns.

Word	Noun	Adjective	Verb	Adverb
rush candle	Yes	No	No	No
taper	Yes	No	Yes	No

As nouns, taper is a hypernym of rush candle; that is, taper is a word with a broader meaning than rush candle:

Other hypernyms of rush candle include candle, wax light.

rush candle (noun)	taper (noun)
a tallow candle with a rush stem as the wick	stick of wax with a wick in the middle
	a loosely woven cord (in a candle or oil lamp) that draws fuel by capillary action up into the flame
	the property possessed by a shape that narrows toward a point (as a wedge or cone)
	a convex shape that narrows toward a point

rush candle (verb)	taper (verb)
	give a point to
	diminish gradually