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'.
Etymology Explore the origin of the 'core words'.

{n}	expression	(colloquialism or idiom)	Redensart {f}
{n}	expression	((computing) a piece of code in a high-level language that returns a value)	Ausdruck {m}
{n}	expression	(facial appearance)	Ausdruck {m}
{n}	expression	(mathematics: arrangement of symbols)	Ausdruck {m}
{n}	expression	(particular way of phrasing an idea)	Ausdruck {m}