The standard language in the South (표준어 / 標準 語 pyojuneo) is largely based on the Seoul dialect, and the standard language (문화어 / 文化 語 munhwaŏ) in the North is largely based on the Pyongyang dialect. However, both in the North and in the South, the vocabulary and forms of the standard language come from Sajeonghan Joseoneo Pyojunmal Mo - eum 사정 한 조선어 표준말 모음 published by the Korean Language Society in 1936, and so there is very little difference in the basic vocabulary between the standard languages used in the North and the South. Nevertheless, due to the difference in political systems and social structure, each country is constantly adding different words to its vocabulary.
what is the language spoken in north korea
munhwaŏ