I. ˌduty-ˈfree1 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 [TahlilGaran] Dictionary of Contemporary English ▲
II. duty-free2 noun [uncountable and countable] alcohol, cigarettes etc that you can bring into a country without having to pay tax on them
[TahlilGaran] Dictionary of Contemporary English ▲