This is the 4753rd most frequent Russian word.
закупить
To purchase in bulk.
In this sentence, the word "закупить" is used to denote the action of acquiring or buying a quantity of items (fruits) for an event (celebration).
Мы решили закупить фрукты для праздника.
We decided to purchase fruits for the celebration.
Here, "закупить" indicates the act of obtaining necessary tools or technology (equipment) to enhance or upgrade a process (production modernization).
Компания планирует закупить оборудование для модернизации производства.
The company plans to purchase equipment for production modernization.
The usage of "закупить" here signifies the necessity to acquire stock or merchandise before starting a business venture (opening a store).