1. A region, territory, or space that has been identified, explored, or is familiar to people
The hikers stayed within the known area to avoid getting lost.
Os caminhantes ficaram dentro da área conhecida para evitar se perder.
2. In professional contexts, a field or domain in which someone has established expertise or experience
She worked only in her known area of computer science.
Ela trabalhou apenas em sua área conhecida de ciência da computação.
3. A zone that has been surveyed, mapped, or documented
Archaeologists excavated artifacts from the known area of the settlement.
Os arqueólogos escavaram artefatos da área conhecida do assentamento.