This is the 629th most frequent Polish word.
kwiatów
"Flowers" (genitive plural of "kwiat").
In this sentence, 'kwiatów' is in the genitive plural form, indicating possession or related to the beauty of the flowers.
Zwróciłem uwagę na piękno tych kwiatów.
I noticed the beauty of these flowers.
Here, 'kwiatów' is used in the genitive case to describe the origin or source of the scent.
Zapach kwiatów był niezwykle przyjemny.
The scent of the flowers was extremely pleasant.
In this context, 'kwiatów' is also in the genitive plural form, expressing absence or something lacking.