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Initial sound rule
From Wikipedia, the free encyclopedia
Initial sound rule (Korean: 두음법칙; Hanja: 頭音法則; RR: dueum beopchik ) is series of changes to hangul, the writing system for the Korean language, made in South Korea to better reflect modern Korean phonology. The changes affect syllable-initial ㄹ r and ㄴ n sounds in Sino-Korean vocabulary under certain conditions. North Korea orthography does not recognize this rule, making it one of a number of North–South differences in the Korean language.
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