a disk for closing the end of a pipe, having holes for bolting it to a flange.
subfloor. a rough floor beneath a finished floor. noun a rough floor that forms a base for a finished floor
to prevent or occlude sight by covering (the eyes) with a cloth, bandage, or the like; cover the eyes of. to impair the awareness or clear thinking of: Don’t let their hospitality blindfold you to the true purpose of their invitation. a cloth or bandage put before the eyes to prevent seeing. with the eyes […]
noun (Austral, informal) an imaginary person representing the highest degree of incompetence (esp in the phrase Blind Freddie could see that!)