1. An area or region operating secretly or illegally, often used for underground activities, smuggling, or illegal operations
The police discovered a clandestine zone used for drug trafficking in the port area.
A polícia descobriu uma zona clandestina utilizada para tráfico de drogas na área portuária.
2. A hidden or secret location used by resistance movements, underground organizations, or fugitives
During the war, the resistance established clandestine zones in the mountains.
Durante a guerra, a resistência estabeleceu zonas clandestinas nas montanhas.