This is the 4784th most frequent Russian word.
зарубежные
"Foreign" or "overseas".
In this sentence, "зарубежные" is used as an adjective modifying "журналы" (magazines), indicating that these magazines originate from abroad or another country.
Я читал зарубежные журналы о путешествиях.
I read foreign magazines about travel.
Here, "зарубежные" describes "компании" (companies), implying they are international or not from the home country.
Зарубежные компании активно инвестируют в нашу экономику.
Foreign companies actively invest in our economy.
The word "зарубежных" is used to describe "стран" (countries), meaning countries that are abroad or international.