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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}	play	(area of free movement for a part of a mechanism)	Spiel {n}
{n}	play	(playful activity)	Spiel {n}
{n}	play	(theatrical performance)	Schauspiel {n}
{v}	play	(act in a manner such that one has fun)	spielen
{v}	play	(act in a performance)	spielen
{v}	play	(participate in (a sport or game))	spielen
{v}	play	(produce music using a musical instrument (intransitive sense, not affecting a noun))	spielen
{v}	play	(produce music using a musical instrument (transitive sense), affecting a noun)	spielen
{v}	play	(use a device to hear (a recording))	abspielen, spielen