as in to freeze
to become physically firm or solid
wait for the modeling clay to firm up before handling the finished pot
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Example Sentences
Recent Examples of Synonyms for firm (up)
Verb
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When asked for comment about what the president said, a spokesman for Mamdani referred CBS News New York to the mayor's statement from Thursday night after the Rent Guidelines Board voted to freeze rents for two years.
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There is no shortage of policy proposals for reducing college costs, ranging from freezing tuition to canceling student debt.
Verb
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The company is offering several products at no cost for a limited period or at a 90% discount on one-year term licenses, targeting customers who need to further harden Oracle Database environments but have delayed investment due to cost, complexity, or procurement friction.
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As that assumption erodes, attention has shifted from hardening GPS toward security through diversification.
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“Firm (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/firm%20%28up%29. Accessed 28 Jun. 2026.
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