This is the 459th most frequent Bulgarian word.
действие
Action; act; operation.
The word 'действие' is used here to mean 'action', referring to a specific act or deed.
Това действие изисква кураж.
This action requires courage.
In this context, 'действие' represents an activity or process that is generally beneficial.
Четенето на книги е полезно действие.
Reading books is a beneficial activity.
Here, 'действие' is used to denote the storyline or plot of a film.