bootlace vs lacing

bootlace and lacing both are nouns.

Word	Noun	Adjective	Verb	Adverb
bootlace	Yes	No	No	No
lacing	Yes	No	No	No

As nouns, lacing is a hypernym of bootlace; that is, lacing is a word with a broader meaning than bootlace:

bootlace: a long lace for fastening boots
lacing: a cord that is drawn through eyelets or around hooks in order to draw together two edges (as of a shoe or garment)

Other hypernyms of bootlace include lace.

bootlace (noun)	lacing (noun)
a long lace for fastening boots	the act of inflicting corporal punishment with repeated blows
	a cord that is drawn through eyelets or around hooks in order to draw together two edges (as of a shoe or garment)
	a small amount of liquor added to a food or beverage