1. a region characterized by dense population, infrastructure, and human development, typically consisting of cities and towns
The urban area of São Paulo is one of the largest in South America.
A área urbana de São Paulo é uma das maiores da América do Sul.
2. land or territory within city or town boundaries with developed buildings, streets, and services
Most urban areas have public transportation systems.
A maioria das áreas urbanas possui sistemas de transporte público.