This is the 16879th most frequent Polish word.
wymyć
"To wash out" or "to clean thoroughly."
Here, 'wymyć' is used to describe the act of thoroughly washing an object, in this case, a car.
Muszę wymyć samochód przed wyjazdem.
I need to wash the car before the trip.
In this sentence, 'wymyć' indicates washing something, emphasizing thoroughness, applied here to washing individuals clean.
Po zabawie w błocie dzieci muszę wymyć.
After playing in the mud, I need to clean the children.
Here, 'wymyć' refers to the thorough cleaning of a surface, such as a floor, ensuring it is spotless.