This is the 11674th most frequent Russian word.
журналах
"Журналах" means "magazines" or "journals" (prepositional plural).
In this sentence, "журналах" is in the prepositional case and refers to the location or medium where the action is taking place.
Я читаю статью в популярных журналах.
I am reading an article in popular magazines.
Here, "журналах" also indicates the source of the information and is in the prepositional case.
Они обсуждают новости, появившиеся в новых журналах.
They discuss news that appeared in new magazines.
In this case, "журналах" is used metaphorically to mean school registers rather than magazines, illustrating the diverse meanings of the word.