1.  showcase(n = noun.state) show window - a setting in which something can be displayed to best effect; "it was a showcase for democracy in Africa"
is a kind of background, scope, setting

2.  showcase(n = noun.artifact) case, display case, vitrine - a glass container used to store and display items in a shop or museum or home;
is a kind of container
has particulars: trophy case

showcase, n. & v.
--n.
1 a glass case used for exhibiting goods etc.
2 a place or medium for presenting (esp. attractively) to general attention.
--v.tr. display in or as if in a showcase.