This is the 2056th most frequent Russian word.
герои
Heroes.
Here, 'герои' refers to fictional characters in a book that exemplify positive qualities.
Герои этой книги вдохновляют на добрые дела.
The heroes of this book inspire good deeds.
In this sentence, 'герои' signifies real-life people who perform altruistic acts.
Истинные герои - это те, кто жертвуют ради других.
True heroes are those who sacrifice for others.
Here, 'герои' is used to refer to admired fictional or real-life figures whom the children emulate.