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
☆☆ ANCIENT TIMES Noun 古代古代 thời kỳ cổ đại
☆ GOLDEN DAYS; PRIME; HEYDAY Noun 黄金期当年，黄金期，黄金时期，鼎盛时期 thời kỳ hoàng kim
☆ PEAK SEASON; BUSY SEASON Noun 盛需期旺季 mùa cao điểm, thời kỳ cao điểm