A place approved by HM Revenue & Customs for the deposit, keeping and securing of goods liable to excise duty, without payment of that duty. This term is often applied to a Customs Warehouse: incorrectly, since no bond is usually required for these. HM Customs & Revenue Glossary
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bonded warehouse UK US noun [C] (also customs warehouse) TAX,
► a place where goods are kept before tax is paid on them: »
The goods were held in a bonded whisky warehouse.
Financial and business terms. 2012.