This is the 1452nd most frequent Russian word.
исполнения
"Исполнения" means "execution," "performance," or "fulfillment" depending on context.
Here, 'исполнения' functions as a noun in the genitive case, referring to the act of fulfilling something, specifically a dream.
Исполнения мечты заняло много времени.
The fulfillment of the dream took a lot of time.
In this sentence, 'исполнения' is used as a noun in its genitive case, meaning 'execution' or 'carrying out', with respect to tasks.
Для качественного исполнения задач нужно внимание к деталям.
For quality execution of tasks, attention to detail is required.
Here, 'исполнения' is used to describe the performance or rendering, particularly in the context of a song or artistic piece.