This is the 2261st most frequent Russian word.
защита
"Protection" or "defense."
Here, 'защита' refers to the preservation and protection of the environment, showing its use as an abstract noun.
Защита окружающей среды является важной задачей.
Environmental protection is an important task.
In this context, 'защита' means physical protective gear, demonstrating its use in a concrete sense.
Спортсмен надел защиту перед игрой.
The athlete put on protection before the game.
Here, 'защита' is used in a legal context, referring to the act of defending someone in court.