This is the 13792nd most frequent Korean word.
마지막의
"마지막의" means "final" or "last."
The word '마지막의' is used here as an adjective modifying '기회', meaning 'last'.
이것이 마지막의 기회야.
This is the last chance.
The word '마지막의' is modifying '순간', giving the meaning 'final' because '순간' means 'moment'.
마지막의 순간에서 우리는 다시 만날 운명이었어.
At the final moment, we were fated to meet again.
Here, '마지막의' modifies '날', translating as 'the last day', where '날' means 'day'.