1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Core Words Familarize yourself with the 'core words'.
Etymology Explore the origin of the 'core words'.
Wordsense Learn about the wordsenses of the english term.

COMPOUNDS

chạy xuống to run down, run downstairs
dưới nhà downstairs
xuống nhà downstairs; to go downstairs
đi xuống lầu to go downstairs
đi xuống nhà to go downstairs