The smart money is on sth
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money that is bet (= risked) or invested (= put into something in order to make a profit) by people who know a lot about a subject:
The smart money is on sth meaning & definition 1 of The smart money is on sth.
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the people who know a lot about a subject:
The smart money is on sth meaning & definition 2 of The smart money is on sth.