sub·con·tract 
(sŭb-kŏntrăkt′, sŭbkŏn′trăkt)
(sŭb-kŏntrăkt′, sŭbkŏn′trăkt)n.
A contract in which a party agrees to perform part of the work that was originally arranged with the signer of a previous contract.
intr. & tr.v. (sŭb-kŏntrăkt′, sŭb′kən-trăkt) sub·con·tract·ed, sub·con·tract·ing, sub·con·tracts
To make a subcontract or a subcontract for.