This is the 5250th most frequent Russian word.
обустроят
"They will arrange" or "They will set up."
The word "обустроят" is used in the sense of "setting up" or "arranging" something in an organized way.
Строители обустроят новую детскую площадку в парке.
The builders will set up a new children's playground in the park.
The word "обустроят" is used in the sense of "arranging" or "furnishing" a living space with necessary items.
После ремонта они обустроят свою квартиру с мебелью.
After the renovation, they will furnish their apartment with furniture.
The word "обустроят" is used in the sense of "organizing" or "setting up" a place for living.