drawing board

Phrases
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back to the drawing board
- used to indicate that an idea, scheme, or proposal has been unsuccessful and that a new one must be devised: the government must go back to the drawing board and review the whole issue of youth training
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on the drawing board
- (of an idea, scheme, or proposal) under consideration and not yet ready to put into practice: there are plans to enlarge the runway, but at present all this remains on the drawing board