duty-free

noun
  1. 1

    A duty-free article, especially part of the allowance of such goods allowed to be imported.

    โ€œWe brought back so much duty-free we could hardly walk.โ€

  2. 2

    A shop where duty-free goods can be bought.

    โ€œHave you been to Melbourne airport's duty-free?โ€

adjective
  1. 1

    Exempt from duty, especially from customs duty.

Source: https://en.wiktionary.org/wiki/duty-free