Dejà Vu in Dialogue: Why Korean and Japanese Share So Many Words
Dejà Vu in Dialogue: Why Korean and Japanese Share So Many Words For English speakers, learning Korean or Japanese feels like climbing a vertical cliff. But for Koreans and Japanese people, learning each other's language is often described as "getting a second language for half the price." While they are technically classified as different language families (or language isolates), the sheer volume of shared vocabulary is staggering. In 2026, as cultural exchange between Seoul and Tokyo reaches new heights through music, food, and tourism, understanding these linguistic roots is more relevant than ever. Here are the four primary reasons why these two languages feel like long-lost siblings. 1. The Hanja-Kanji Powerhouse: A Shared Sino-Core The most significant reason for the similarity is their shared history with Chinese characters . For over a millennium, Classical Chinese was the "Latin" of East Asia. Approximately 60% to 70% of the vocabulary in both Kore...