This is the 15373rd most frequent Russian word.
почистить
To clean.
Here, 'почистить' implies 'cleaning by brushing,' typically used for personal hygiene like brushing teeth.
Мне нужно почистить зубы перед сном.
I need to brush my teeth before bed.
In this sentence, 'почистить' suggests 'cleaning' in the context of removing dirt from surfaces during household cleaning.
У нас большая уборка: нужно почистить окна и полы.
We have a big cleaning task: we need to clean the windows and floors.
This usage of 'почистить' refers to cleaning an object of debris or external substance, such as brushing away snow from a car.