This is the 15882nd most frequent Russian word.
промыть
"To rinse" or "to wash out."
In this context, 'промыть' means to wash vegetables thoroughly with water to clean them.
Мне нужно промыть овощи перед приготовлением.
I need to rinse the vegetables before cooking.
Here, 'промыть' is used to describe cleaning a wound with a liquid, often for disinfection.
Он промыл рану перекисью водорода.
He rinsed the wound with hydrogen peroxide.
In this sentence, 'промыть' metaphorically describes the process of a river shaping a valley by carrying away materials.