1. The act of entering a territory, country, or space by force, typically with military forces
The military invasion of the country lasted several months.
A invasão militar do país durou vários meses.
2. An unwanted or uninvited entry into a place or situation
The unexpected guests felt like an invasion of privacy.
Os convidados inesperados pareciam uma invasão de privacidade.
3. The rapid spread or proliferation of something unwanted, such as pests or diseases
The locust invasion destroyed the crops.
A invasão de gafanhotos destruiu as colheitas.