Synonyms|178Antonyms|0|Broader|2Narrower|0Related|5
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sharpen(verb, severe, exercise, strengthen)
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shore up(expression, strengthen, harden)
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specify
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spike(verb, severe, exercise, strengthen)
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spring for(expression, compensate, countercheck, overcompensate)
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stable
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steadying(fix, sustain, compensate, countercheck, overcompensate)
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step up(verb, severe, exercise, strengthen)
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stiffen
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strengthen(verb, severe, exercise, fortify, harden)
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sweeten the pot(expression, idiom, compensate, countercheck, overcompensate)
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swing for(expression, compensate, countercheck, overcompensate)
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take care of(expression, idiom, compensate, countercheck, overcompensate)
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take precedence(expression, compensate, countercheck, overcompensate)
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temper(strengthen, harden)
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tip the scales(expression, idiom, compensate, countercheck, overcompensate)
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toughen(strengthen, harden)
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whet(verb, severe, exercise, strengthen)
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APASmart Define. (2015). firm up thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/firm_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "firm up thesaurus" https://smartdefine.org/firm_up/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, firm up thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/firm_up/thesaurus/synonyms>.
MLASmart Define. "firm up thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/firm_up/thesaurus/synonyms>