1. A sudden, usually military attack or invasion into enemy territory
The army made a swift incursion across the border.
O exército fez uma incursão rápida através da fronteira.
2. An unauthorized or intrusive entry into a place or domain
The hacker's incursion into the company's database was discovered.
A incursão do hacker no banco de dados da empresa foi descoberta.
3. An exploratory journey or expedition into an unfamiliar area
The explorers made their first incursion into the rainforest.
Os exploradores fizeram sua primeira incursão na floresta tropical.