This is the 11911th most frequent Korean word.
년째
"년째" means "for the [number]th year" or "in the [number]th year."
Here, '년째' is used to indicate the duration of time, meaning 'for 3 years'.
나는 한국에서 3년째 살고 있어요.
I have been living in Korea for 3 years.
Here, '년째' specifies the continuity of an action for 5 years.
그들은 5년째 매일 시장에 가요.
They have been going to the market every day for 5 years.
Here, '년째' shows the ongoing duration of a project for 2 years.