I. ˌduty-ˈfree 1 BrE AmE adjective
duty-free goods can be brought into a country without paying tax on them:
duty-free cigarettes
the duty-free shop
—duty-free adverb
II. duty-free 2 BrE AmE noun [uncountable and countable]
alcohol, cigarettes etc that you can bring into a country without having to pay tax on them