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Use "solidest" in a sentence
"Yuval Levin proves to have the solidest right-wing bona fides as he manages to incorporate a proposal for a giant tax cut for rich people (key phrase: “cut the number of tax brackets”) into an unrelated proposal for a larger child tax credit."
"I.L.W. — the biggest and solidest organization of labour the United"
"The last one reads: "That the more one digs the foundations the more and more one finds the solidest (sic) of granit (sic) for you and I to build a life together upon.""