매진해요 · 매진했어요 · 매진할 거예요 · 매진하세요
to devote oneself to, to push forward with, to strive toward
Example
졸업 후에는 연구에만 매진할 계획이에요.
After graduation, I plan to devote myself entirely to research.
Word parts
매 stride+진 advance
Literally 'stride forward' — pressing on toward a goal.
Good to know
Homonym alert: a different 매진 means 'sold out', as in 표가 매진되다 'tickets are sold out'.