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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}	inequality	(statement that one quantity is less (or greater) than another)	Ungleichung {f}
{n}	inequality	(unfair, not equal, state)	Ungleichheit {f}