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

The operator allegedly made more than $90,000 in profits on the trades, although most of that money was frozen by Kalshi after the bets were flagged as suspicious.

— Lim Hui Jie, CNBC, 17 July 2026
The European Space Agency's Mars Express orbiter has been capturing some of the Red Planet's most surreal landscapes, and its latest images reveal a sprawling field that looks like molten metal frozen across the floor of an ancient Mars crater.

— Sharmila Kuthunur, Space.com, 17 July 2026

Definition of freeze

Verb

However, some experts are concerned about how the roughly year-long effort to modify the aircraft may not have been sufficient to fully harden it for operations in high-threat airspace.

— Alexandra Skores, CNN Money, 10 July 2026
Instead of building parts one layer at a time, the system hardens the printing material all at once, producing seamless structures.

— Neetika Walter, Interesting Engineering, 10 July 2026

Definition of harden

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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 19 Jul. 2026.

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Synonyms of firm (up)

verb

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