taper vs lamp

taper and lamp both are nouns.

Word	Noun	Adjective	Verb	Adverb
taper	Yes	No	Yes	No
lamp	Yes	No	No	No

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

taper (noun)	lamp (noun)
stick of wax with a wick in the middle	an artificial source of visible illumination
a loosely woven cord (in a candle or oil lamp) that draws fuel by capillary action up into the flame	a piece of furniture holding one or more electric light bulbs
the property possessed by a shape that narrows toward a point (as a wedge or cone)
a convex shape that narrows toward a point

taper (verb)	lamp (verb)
give a point to
diminish gradually