173 entries under strengthen topic. ×
| step up(verb, expression, support, increase, establish) | |
| stick together(verb, expression, meet, join, link) | |
| stroke(verb, support, increase, boost, sustain) | |
| supplement(verb, support, increase, boost, sustain) | |
| throw in with(verb, expression, idiom, meet, join) | |
| tie in(expression, develop, secure, join, unite) | |
| underline(verb, support, increase, boost, sustain) | |
| unify(verb, meet, develop, secure, join) | |
| wed(verb, meet, join, link, connect) | |
| allying | |
| buck up(expression, stimulate, refresh, revitalize) | |
| bulwark(verb, support, reinforce) | |
| candied(verb, reinforce, jellied, gel) | |
| charge up(verb, expression, support, reinforce) | |
| cheer(encourage, restore, hearten, toughen) | |
| compound(develop, secure, join, unite, combine) | |
| embattle(verb, support, reinforce) | |
| embolden(encourage, restore, hearten, toughen) | |
| encourage(restore, hearten, toughen) | |
| forge |
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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> |