Firm
Firm adjective - Having been established and usually not subject to change.
Usage example: the selling price of the house is firm, so there'll be no dickering
True is a synonym for firm in determined topic. In some cases you can use "True" instead an adjective "Firm", when it comes to topics like unalterable, continue.
True
True adjective - Worthy of one's trust.
Usage example: a true friend when you need one
Mutual synonyms
Both words in one sentence
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Guile Hero: Mike, and possibly several other characters at the firm, depending on their true motivations.
Source: Series / Suits -
The Missionaries firm is actually a deception, its true goal is the conquest of the world by its leader.
Source: Web Video / Le Visiteur du Futur -
Nearly all of the firm's major clients back out, and Marty faces prison time, just as he and Jeannie discovered their true feelings for one another.
Source: Series / Hou$e Of Lie$
Cite this Source
True and Firm. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/firm/true
Firm & True. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/firm/true>.
True or Firm. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/firm/true.
Google Ngram Viewer shows how "firm" and "true" have occurred on timeline