/ˌdjuːtɪˈfriː/ – adj
Definition: miễn thuế.
A more thorough explanation: “Duty-free” refers to goods that are exempt from the payment of certain taxes or duties, typically those imposed on imports. These goods can be sold at lower prices because they are not subject to the usual taxes or duties that would apply to similar items sold in the regular retail market.
Example: The duty-free shop at the airport offers tax-free goods to international travelers.