FIRM UP Synonyms: 40 Similar and Opposite Words

firm (up)

verb

Definition of firm (up)

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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Recent Examples of Synonyms for firm (up)

Verb

Jean overpowers their restraints and creates a gigantic psychic bubble that freezes in place nearly everyone in New York City.

— Jordan Moreau, Variety, 31 July 2026
The following day, the state added him to its official register of terrorists and extremists, a designation that obliges Russian banks to freeze his assets.

— Susie Violet Ward, Forbes.com, 31 July 2026

Definition of freeze

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firms (up)

firm (up)

first

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“Firm (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/firm%20%28up%29. Accessed 3 Aug. 2026.

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Synonyms of firm (up)

verb

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