This is the 1008th most frequent Japanese word.
韓
"韓" refers to Korea.
Here, '韓' is part of the noun '韓国' (South Korea), representing the country.
韓国は美しい国です。
South Korea is a beautiful country.
In this sentence, '韓' appears as part of the term '韓流' (Korean wave), denoting the spread of Korean culture.
彼は韓流ドラマが大好きです。
He loves Korean dramas.
In this context, '韓' stands alone to refer to the historical or cultural identity of Korea.