This is the 13127th most frequent Russian word.
международно
Internationally.
The word "международно" functions as an adverb to indicate that the organization operates across international borders.
Эта организация действует международно.
This organization operates internationally.
In this case, "международно" is used to describe the manner in which the event was recognized.
Это событие было международно признано.
This event was internationally recognized.
Here, "международно" refers to the context of collaboration across nations.