This is the 335th most frequent Romanian word.
externe
"Externe" in Romanian means "external" or "foreign."
In this sentence, 'externe' is used as an adjective that qualifies 'Afacerilor' (Affairs), indicating that these affairs pertain to external or foreign matters, specifically in a diplomatic or governmental context.
Ministerul Afacerilor Externe se ocupă cu relațiile diplomatice ale țării.
The Ministry of External Affairs deals with the country's diplomatic relations.
Here, 'externe' is an adjective that describes 'problemele' (issues), referring to matters that originate outside the company, in contrast to internal issues.
Problemele externe ale companiei afectează și activitatea internă.
The external issues of the company also affect internal operations.
In this instance, 'externă' (a form of 'externe') is an adjective connected to 'partea' (part), describing the exterior or outer side of the building.