This is the 452nd most frequent Romanian word.
polonia
"Polonia" in Romanian means "Poland" in English.
In this sentence, 'Polonia' is used as a proper noun representing the country 'Poland' and acts as the object of the verb 'am vizitat' (I visited).
Am vizitat Polonia vara trecută.
I visited Poland last summer.
Here, 'Polonia' specifies the origin of the friend, functioning as a geographical indication.
Prietenul meu este din Polonia și îmi povestește des despre tradițiile lor.
My friend is from Poland and often tells me about their traditions.
In this case, 'Polonia' acts as the location related to the subject 'industria turistică' (the tourism industry), describing where it is growing.