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
☆ OLD AGE; ADVANCED AGE Noun 高龄高龄 cao tuổi, tuổi cao
☆ AGING Noun 高龄化高龄化，老龄化 sự lão hóa, sự già hóa
☆ OLD AGE Noun 老龄老龄，高龄 tuổi già, tuổi cao