fracture vs discontinue

fracture is a noun but discontinue is not a noun.

Word	Noun	Adjective	Verb	Adverb
fracture	Yes	No	Yes	No
discontinue	No	No	Yes	No

As verbs, discontinue is a hypernym of fracture; that is, discontinue is a word with a broader meaning than fracture:

Other hypernyms of fracture include break, break off, stop.

fracture (noun)	discontinue (noun)
the act of cracking something
(geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other
breaking of hard tissue such as bone

fracture (verb)	discontinue (verb)
fracture a bone of	prevent completion
become fractured	put an end to a state or an activity
violate or abuse	come to or be at an end
break into pieces
interrupt, break, or destroy