Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Companiesoutsourcingout‧sour‧cing /ˈaʊtˌsɔːsɪŋ $ -ˌɔːr-/ noun [uncountable] BBCwhen a company uses workers from outside the company to do a job the outsourcing of the marketing to a specialist firm —outsource verb [transitive] ldoceonline.com