This is the 11812th most frequent Russian word.
замглавного
"Deputy chief" or "deputy head."
The word 'замглавного' refers to the deputy chief or vice principal in this context, emphasizing their role in replacing or assisting the chief.
Замглавного принял участие в совещании.
The deputy chief participated in the meeting.
Here, 'замглавного' is used to indicate a possessive relationship — instructions coming from the deputy chief.
Все поручения от замглавного всегда тщательно выполняются.
All orders from the deputy chief are always carried out thoroughly.
This sentence demonstrates the word 'замглавного' as in the role of leading or presiding over an event.