Entry 1 sense Webster, 1913 Entablature · En·tab·la·ture · IPA /ɛnˈtæ.blə.t͡ʃɚ/ 01 n. The superstructure which lies horizontally upon the columns. See Illust. of Column, Cornice. 1. The superstructure which lies horizontally upon the columns. See Illust. of Column, Cornice.(Arch.) See: Column, Cornice