From Longman Business Dictionaryimport dutyˈimport ˌduty [countable, uncountable]TAX a tax on goods coming into a country from abroad, often used by governments as a way of reducing imports and protecting local industriesSYNIMPORT LEVY, IMPORT SURCHARGE, IMPORT TARIFFimport duty ona US decision to impose import duties on Honda’s Canadian-assembled cars → duty