1. A situation or topic that is risky, sensitive, or likely to cause problems or controversy
We're on dangerous ground if we start discussing politics at this family dinner.
Estamos em terreno perigoso se começarmos a discutir política neste jantar familiar.
2. A physically hazardous area or location
The soldiers were warned they were entering dangerous ground ahead.
Os soldados foram avisados que estavam entrando em terreno perigoso à frente.