This is the 3591st most frequent Russian word.
снизились
"Снизились" means "decreased" or "lowered."
Here, 'снизились' is used to indicate a reduction in prices, emphasizing a quantitative decline.
Цены на продукты снизились.
Prices of groceries have decreased.
In this sentence, 'снизился' is applied to the change in noise level, showing a reduction in intensity or magnitude.
Уровень шума в комнате снизился.
The noise level in the room has reduced.
This usage of 'снизилась' describes a decrease in temperature, signifying a lower measurement over time.