Synonyms|178Antonyms|0|Broader|2Narrower|0Related|5

64 entries under strengthen topic. ×

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build up(verb, expression, severe, exercise)
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climatize
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clinch(settle, decide, fortify)
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concentrate(verb, severe, exercise)
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confirm(settle, establish, decide, fortify)
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darken(verb, severe, exercise)
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deepen(verb, severe, exercise, fortify)
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develop
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emphasize(verb, severe, exercise)
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enhance(verb, establish, severe, exercise)
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escalate(verb, severe, exercise)
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exacerbate(verb, severe, exercise)
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exalt(verb, severe, exercise)
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exercise(verb, severe)
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fortify
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get in shape(verb, severe, exercise)
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heat up(verb, severe, exercise)
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heighten(verb, severe, exercise)
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increase(verb, severe, exercise)
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intensate(verb, severe, exercise)
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APASmart Define. (2015). firm up thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/firm_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "firm up thesaurus" https://smartdefine.org/firm_up/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, firm up thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/firm_up/thesaurus/synonyms>.
MLASmart Define. "firm up thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/firm_up/thesaurus/synonyms>