This is the 734th most frequent Romanian word.
ucrainenii
"The Ukrainians."
Here, 'ucrainenii' is used as the subject of the sentence, identifying a group of people, specifically Ukrainians.
Ucrainenii sunt vecinii noștri din est.
The Ukrainians are our neighbors to the east.
In this sentence, 'ucrainenii' functions as the direct object of the verb, indicating the group with whom the action is performed.
Am discutat cu ucrainenii despre tradițiile lor.
I talked to the Ukrainians about their traditions.
The word 'ucrainenii' is used here to specify a subset of Ukrainians associated with them (their) in the context of the event.