subcontracting
noun/ˌsʌbkənˈtræktɪŋ/
/ˌsʌbˈkɑːntræktɪŋ/
[uncountable]- the practice of paying a person or company to do some of the work that you have been given a contract to do
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subcontracting
Definition of subcontracting noun from the Oxford Advanced Learner's Dictionary