subcontractor vs subcontract

subcontractor and subcontract both are nouns.

Word	Noun	Adjective	Verb	Adverb
subcontractor	Yes	No	No	No
subcontract	Yes	No	Yes	No

subcontractor (noun)	subcontract (noun)
someone who enters into a subcontract with the primary contractor	a contract assigning to another party some obligations of a prior contract

subcontractor (verb)	subcontract (verb)
	work under a subcontract; engage in a subcontract
	arranged for contracted work to be done by others