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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'.

{adv}	zigzag	(in a zigzag manner or pattern)	zickzack
{n}	zigzag	(a line or path that proceeds by sharp turns in alternating directions)	Zickzack {m}