This is the 464th most frequent Ukrainian word.
захист
"Defense" or "protection."
Here, 'захист' refers to the act of defending or supporting an opinion or stance.
Він виявив сміливість у захисті своєї точки зору.
He showed courage in defending his point of view.
In this context, 'захист' means the protection or preservation of the environment.
Захист природи є важливим для майбутнього планети.
The protection of nature is important for the future of the planet.
Here, 'захист' denotes a formal presentation or justification as part of an academic examination.