This is the 375th most frequent Hungarian word.
országok
"Országok" means "countries" in English.
The word 'országok' here is in the plural form and is used to refer to multiple countries within the European Union.
Az Európai Unió országaiba utaztam tavaly.
I traveled to countries of the European Union last year.
The word 'országok' is used in its plural accusative form 'országot' here to denote the direct object (countries) in the sentence.
A térképen sok különböző országot láthatunk.
On the map, we can see many different countries.
The word 'országok' is in its plural form and, combined with the suffix '-ba', indicates movement towards multiple countries.