173 entries under strengthen topic. ×
| add fuel to fire(verb, expression, idiom, support, increase) | |
| affiliate(verb, meet, join, link, connect) | |
| ally(verb, meet, join, link, connect) | |
| amass(develop, secure, join, unite, combine) | |
| animate(encourage, stimulate, restore, refresh) | |
| associate(verb, meet, join, unite, combine) | |
| augment(verb, support, increase, boost, sustain) | |
| back up(verb, expression, support, increase, boost) | |
| band(verb, meet, develop, secure, join) | |
| band together(verb, expression, meet, join, link) | |
| benumb(verb, steady, freeze, reinforce) | |
| bind(verb, set, fix, develop, secure) | |
| blend(verb, meet, develop, secure, join) | |
| bolster(verb, support, increase, establish, extend) | |
| boost(verb, support, increase, sustain, uphold) | |
| candy(verb, steady, reinforce, thicken) | |
| carry(verb, support, increase, boost, sustain) | |
| centralize(develop, secure, join, unite, combine) | |
| chill(verb, set, steady, freeze) | |
| climatize(verb, prepare, adjust, adapt) |
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| APA | Smart Define. (2016). harden thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/harden/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "harden thesaurus" https://smartdefine.org/harden/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2016, harden thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/harden/thesaurus/synonyms>. |
| MLA | Smart Define. "harden thesaurus" 24 March 2016. Web. 1 October 2026. <https://smartdefine.org/harden/thesaurus/synonyms> |