drawing board , n :
A plane surface or table to which paper can be fastened for drawing purposes. (figuratively) The planning stage of a project. Today, the first Monday of October in 2017, is designated as World Architecture Day by the International Union of Architects.
Source http://handbookblogger.blogspot.com/2017/10/drawing-board-word-of-day-for-october-2.html
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