This is the 16276th most frequent Polish word.
ustawili
"Ustawili" means "they set up" or "they arranged" in English.
The word 'ustawili' is in past tense and indicates an action of arranging objects.
Ustawili stoły w rzędzie przed rozpoczęciem imprezy.
They arranged the tables in a row before the event started.
Here, 'ustawili' refers to people positioning themselves in a line or order.
Ustawili się w kolejce, żeby kupić bilety.
They lined up to buy tickets.
In this sentence, 'ustawili' means configuring or positioning equipment for use.