This is the 913th most frequent Ukrainian word.
діють
"Діють" in English means "act" or "operate."
In this context, "діють" signifies 'are in effect' or 'are enforced', related to rules or regulations.
Їхні правила діють з початку року.
Their rules have been in effect since the beginning of the year.
Here, "діють" means 'act' or 'operate', referring to taking proactive measures.
Вони активно діють заради допомоги нужденним.
They actively act to help those in need.
In this case, "діють" denotes 'have an effect' or 'influence', referring to causing an impact.