This is the 3771st most frequent Russian word.
чистая
Clean; pure.
The word 'чистая' is used as an adjective representing 'clean,' modifying the noun 'вода' (water) to describe its state of being unpolluted.
Чистая вода течёт в ручье.
Clean water flows in the stream.
Here, 'чистая' describes the noun 'тарелка' (plate), emphasizing that the plate is clean and unused.
На столе осталась чистая тарелка.
A clean plate was left on the table.
In this example, 'чистая' is used figuratively to mean 'pure' or 'unadulterated,' describing the noun 'правда' (truth).