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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}	intelligence	(a department, agency or unit designed to gather such information)	Geheimdienst {m}, Nachrichtendienst {m}, Sicherheitsdienst {m}
{n}	intelligence	(capacity of mind)	Intelligenz {f}
{n}	intelligence	(entity that has such capacities)	intelligentes Leben {n}
{n}	intelligence	(information about the enemy)	Geheimdienstinformationen {f-p}