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'.
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ETYMOLOGY

KOREAN 3.0 Eng Wordtype Etym. Gb Vie
☆☆☆ STRENGTH; POWER Noun 力量，力气 sức, sức lực
☆☆ FORCE; SPIRIT; ENERGY Noun 力气 khí lực, khí thế, sức lực
☆☆ WORK HARD; TRY HARD; FOCUS ON Verb 费心，花力气，用心，努力 gắng sức, nỗ lực
☆☆ TRY HARD Verb 努力，费心，花费力气 cố gắng, gắng sức
☆ LETHARGY Noun 无气力无力，没力气，没力量 sự yếu đuối, sự không có sinh khí
☆ ENERGY Noun 脉劲儿，力气 sinh khí, sức lực
☆ ENERGY Noun 气力力气 khí lực, sức sống
☆ WEAK; FEEBLE; FAINT Adjective 无力，没力气，有气无力，手无缚鸡之力 mệt mỏi, yếu ớt