TESCO'S Meaning of TESCO'S in English Tes ‧ co /ˈteskəʊ/ BrE AmE ( also Tesco's trademark )a British ↑ supermarket (=very large store that sells mainly food, but also clothes, things for the home etc) Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012