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
☆☆ DIURNAL RANGE; DAILY RANGE Noun 日较差日较差 sự chênh lệch nhiệt độ trong ngày
☆ DIFFERENCE; GAP Noun 差差别，差异 độ chênh lệch
☆ GAP; DIFFERENTIAL Noun 隔差差距 sự khác biệt, sự chênh lệch