Here is the meaning of the word, TAPER

Taper ( a. ) - Regularly narrowed toward the point; becoming small toward one end; conical; pyramidical; as, taper fingers.
Taper ( n. ) - A small wax candle; a small lighted wax candle; hence, a small light.
Taper ( n. ) - A tapering form; gradual diminution of thickness in an elongated object; as, the taper of a spire.
Taper ( v. i. ) - To become gradually smaller toward one end; as, a sugar loaf tapers toward one end.
Taper ( v. t. ) - To make or cause to taper.