This is the 11018th most frequent Russian word.
гендиректора
General director (chief executive officer).
In this sentence, 'гендиректора' is in the accusative case, mentioning the person being dismissed.
Гендиректора компании уволили из-за финансовых нарушений.
The general director of the company was dismissed due to financial violations.
Here, 'гендиректором' is in the instrumental case, referring to interaction with the person.
На следующей неделе мы будем обсуждать проект с новым гендиректором.
Next week, we will discuss the project with the new general director.
The word 'гендиректора' is in the genitive case, indicating the source of the message.