This is the 5249th most frequent Russian word.
обустроили
"Обустроили" means "equipped" or "arranged."
In this case, 'обустроили' means 'arranged' or 'furnished', emphasizing the effort and style in setting up a living space.
Они обустроили свою новую квартиру с большим вкусом.
They arranged their new apartment tastefully.
Here, 'обустроили' is used to mean 'set up' or 'established', highlighting the action of organizing and preparing a temporary space for living.
Школьники обустроили палаточный лагерь на берегу реки.
The schoolchildren set up a tent camp on the riverbank.
In this context, 'обустроили' describes the action of organizing and making use of a space, in this case, a garden for agriculture.