61 entries under strengthen topic. ×
| pay expenses of(verb, expression, idiom, keep, maintain) | |
| pay for(verb, expression, keep, maintain, encourage) | |
| pick up(verb, expression, support, increase, sustain) | |
| pick up the check(verb, expression, idiom, keep, maintain) | |
| pillar(verb, support, increase, sustain, uphold) | |
| prop up(verb, expression, support, increase, sustain) | |
| punch up(verb, expression, support, increase, encourage) | |
| put up money for(verb, expression, idiom, keep, maintain) | |
| raise(verb, keep, maintain, encourage, back) | |
| set up(verb, expression, keep, maintain, encourage) | |
| soup up(verb, expression, support, increase, sustain) | |
| sponsor(verb, keep, maintain, encourage, raise) | |
| stake(verb, keep, maintain, encourage, raise) | |
| stand up for(verb, expression, idiom, support, increase) | |
| supplement(verb, support, increase, sustain, uphold) | |
| underline(verb, support, increase, sustain, uphold) | |
| underwrite(verb, keep, maintain, encourage, raise) | |
| cared for(expression, back, fund) | |
| caring for(expression, back, fund) | |
| looking after(expression, raise, back) |
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| APA | Smart Define. (2015). stiffen thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/stiffen/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stiffen thesaurus" https://smartdefine.org/stiffen/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, stiffen thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/stiffen/thesaurus/synonyms>. |
| MLA | Smart Define. "stiffen thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/stiffen/thesaurus/synonyms> |