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
☆☆☆ AFTERNOON Noun 午后下午，午后 buổi chiều
☆☆☆ LATER TIME; THE FUTURE Noun 以后以后 sau này, mai đây, mai sau
☆☆☆ LATER TIME Noun 后后，以后，之后 sau, sau khi
☆☆ NEXT; FOLLOWING Noun 直后之后 ngay sau khi
☆☆ AFTER A MEAL Noun 食后饭后，餐后 sau khi ăn, sau bữa ăn
☆☆ FRONT AND REAR; BEING IMMEDIATE Noun 前后前后 trước sau
☆ ONE'S OLD AGE Noun 老后晚年，老后，年老后 khi về già
☆ FUTURE; COMING DAYS Noun 后 날 后日，以后，将来 ngày sau, mai sau, sau này, mai này
☆ REAR; BACK Noun 背后后方 sau lưng
☆ THE FINAL; THE LAST Noun 最后最后 sau cùng
☆ BEING AFTER THE FACT; BEING POST; BEING SUBSEQUENT; BEING EX-POST FACTO Noun 事后事后，后续 sau khi kết thúc công việc, về sau
☆ FALLING BEHIND Noun 落后落后 sự lạc hậu
☆ NEXT; FOLLOWING Noun 向后往后，此后，今后，从今以后 tiếp theo, sắp tới
☆ A.D. Noun 纪元后公元后 sau công nguyên