This is the 750th most frequent Serbian word.
средње
"Средње" means "medium" or "average" in English.
Here, 'средње' is used as an adverb indicating a level of difficulty.
Ово питање је средње тешко.
This question is of medium difficulty.
In this sentence, 'средње' functions as an adjective describing the noun 'образовање' (education).
Имам средње образовање.
I have a secondary education.
Here, 'средње' describes the position as being in the middle, functioning as an adjective modifying 'месту' (position).