show window show·win·dow uncommon noun 1. a setting in which something can be displayed to best effect “it was a showcase for democracy in Africa” Synonymsshowcaseshow window 2. a window of a store facing onto the street; used to display merchandise for sale in the store Synonymsdisplay windowshopwindowshow window Related words Broader terms windowsetting Parts shopfront WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.