This is the 2098th most frequent Portuguese word.
externo
"Externo" means "external" or "outside" in English.
Here, 'externo' is used as an adjective to describe the location of the event, indicating it is outside or exterior to the referenced building.
O evento será realizado no espaço externo do edifício.
The event will be held in the external space of the building.
In this case, 'externo' describes the attribute of the employee, implying they are from outside the usual organization or permanent staff.
O funcionário externo foi contratado para concluir o projeto.
The external employee was hired to complete the project.
Here, 'externo' serves as an adjective to qualify the problems, indicating that they originate from outside the company and not from internal sources.