&quot;Smuggling&quot;, in the primary sense, is moving anything across a boundary without notifying the relevant authorities. It doesn&#x27;t matter whether the stuff is generally legal or illegal; you&#x27;re smuggling if you move it secretly when you weren&#x27;t supposed to.<p>For example, it&#x27;s relatively common in the US to smuggle cigarettes from an area with low cigarette taxes to an area with high cigarette taxes. The legality of conceptual cigarettes isn&#x27;t at issue; what&#x27;s at issue is whether the relevant taxes were paid.