More than 60 years after conflict divided North and South Korea politically, the effects of the split have become apparent in the dialects of the Korean language spoken in the two countries.
Half of the words commonly used in the North Korea are now different from those used in the South.
Researchers from both countries are working on a unified dictionary to help bridge the divide.
Al Jazeera's Harry Fawcett reports from Seoul.
Source: Al Jazeera