smuggler
n.a person who illegally brings goods into or out of a country. They usually do this to avoid paying taxes or to hide something from the law.
n.a person who illegally transports goods across a border or within a country. Often used in the context of illicit trade or the evasion of customs regulations.
“The smuggler hid the goods in a large container.”
“Customs officials arrested a smuggler who was trying to bring rare artifacts into the country without a permit.”
“Historical accounts often depict the smuggler as a complex figure, simultaneously a criminal who evades the state and a vital link in the local economy during times of high taxation.”
“With less equipment available, people smugglers have resorted to using bigger boats.”
“Smugglers are meeting the demand of a booming black market.”
From smuggle + -er.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.