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
☆☆ SPORTSMAN; ATHLETE Noun 运动选手运动选手，运动员 vận động viên thể dục thể thao
☆ EXERCISE; PHYSICAL ACTIVITY Noun 体育体育 thể dục, thể dục thể thao
☆ AEROBICS Noun aerobic 健身操，有氧操 thể dục nhịp điệu