1. An illegal or clandestine pathway used for smuggling, trafficking, or other unlawful activities
The police discovered an illicit route used for drug trafficking across the border.
A polícia descobriu uma rota ilícita usada para tráfico de drogas através da fronteira.
2. An underground or black market distribution channel for prohibited goods or services
Authorities shut down the illicit route for counterfeit merchandise.
As autoridades fecharam a rota ilícita de mercadorias contrafeitas.