This is the 6784th most frequent Russian word.
uzum
"Uzum" is not a Russian word; it is a Turkic word meaning "grape."
The word 'узум' means 'grapes' in Russian in this context.
Я купил узум в магазине.
I bought grapes at the store.
Here, 'узум' still refers to 'grapes' and is the subject of the sentence.
Узум нужно хорошо промыть перед едой.
Grapes need to be well rinsed before eating.
In this sentence, 'узум' is used in a possessive construction, specifying a variety of grapes.