1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Core Words Familarize yourself with the 'core words'.
Compounds Expand your vocabulary by studying more complex words built by the 'core words'.
Wordsense Learn about the wordsenses of the english term.

ETYMOLOGY

KOREAN 3.0 Eng Wordtype Etym. Gb Vie
☆☆☆ GRANDMOTHER; GRANNY Noun 奶奶，姥姥 bà nội, bà
☆☆ MATERNAL GRANDMOTHER Noun 外 할머니 外祖母，姥姥 bà ngoại