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
☆☆☆ BAG Noun 包，背包，提包 túi xách, giỏ xách, ba lô
☆☆ BACKPACKING Noun 背囊旅行背包旅行 du lịch ba lô
☆☆ BACKPACK; KNAPSACK Noun 背囊背包 ba lô