This is the 5855th most frequent Polish word.
zasłania
"Zasłania" means "covers" or "blocks" in English.
The word 'zasłania' here denotes the physical act of covering something to block light or view.
On zasłania okno przed słońcem.
He is covering the window against the sun.
In this sentence, 'zasłania' signifies metaphorically concealing motives or actions behind something, such as excuses.
Zasłania się wymówkami, gdy nie chce czegoś zrobić.
He uses excuses to cover himself when he doesn't want to do something.
Here, 'zasłania' is used to describe an object obstructing the view from a certain perspective.