This is the 351st most frequent Hungarian word.
legújabb
"Legújabb" means "newest" or "latest" in English.
In this context, "legújabb" is used as a superlative adjective to describe the book as being the most recent addition.
Ez a legújabb könyv a sorozatban.
This is the newest book in the series.
Here, "legújabb" emphasizes the idea of being trendy and up to date, applied to fashion.
Mindig a legújabb divatot követi.
She always follows the latest fashion.
In this sentence, "legújabb" denotes that the technology being introduced is the most recent innovation.