Entrepot and Powder magazine

Entrepot noun - A port where merchandise can be imported and then exported without paying import duties.

Powder magazine and entrepot are semantically related. In some cases you can replace phrase "Powder magazine" with "Entrepot", this terms are similar.

Powder magazine noun - A storehouse (as a compartment on a warship) where weapons and ammunition are stored.

Entrepot and powder magazine are semantically related. You can use "Entrepot" instead a noun phrase "Powder magazine".