This is the 2167th most frequent Polish word.
poważnie
"Seriously."
Here, 'poważnie' is used as an adverb to emphasize the seriousness or sincerity of the thought or consideration.
Poważnie myślę o zapisaniu się na kurs językowy.
I seriously consider enrolling in a language course.
In this context, 'poważnie' acts as an adverb to describe how she treats her duties, meaning with seriousness or gravitas.
Ona zawsze traktuje swoje obowiązki poważnie.
She always takes her responsibilities seriously.
Here, 'poważnie' is used as an interjection to express genuine surprise or ponderment aloud about one's lack of an idea.