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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Gupta considers the blanket rent freeze a blunt tool that doesn't adequately address the affordability crisis.
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Identity monitoring service Aura can also freeze your credit without requiring you to contact the credit bureaus.
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 5 Jul. 2026.
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