Being that the South has been open to the rest of the world while the North has been sealed off for seven decades, the Korean spoken on the two sides of the DMZ is rather different. South Korea’s Unification Ministry has been hoping that an “inter-Korean dictionary” — launched in 2005 and currently getting a new push from Seoul (which is paying for it) — could bring the Republic and the Democratic People’s Republic closer together. The project hasn’t been going so well. – Deutsche Welle