173 entries under strengthen topic. ×
| hang together(verb, expression, form, meet, develop) | |
| heat up(verb, expression, support, increase, boost) | |
| hitch(develop, secure, join, unite, combine) | |
| hype(verb, support, increase, boost, sustain) | |
| incorporate(verb, meet, develop, secure, join) | |
| increase(verb, support, establish, extend, boost) | |
| inflate(verb, steady, reinforce, thicken) | |
| inspirit(encourage, stimulate, restore, refresh) | |
| intertwine(verb, meet, join, link, connect) | |
| join(verb, meet, develop, secure, stick) | |
| join forces(verb, expression, meet, join, combine) | |
| keep together(verb, expression, meet, join, link) | |
| lend a hand(verb, expression, idiom, support, increase) | |
| link(verb, place, set, meet, secure) | |
| marry(verb, meet, join, link, connect) | |
| mass(develop, secure, join, unite, combine) | |
| meet(verb, join, link, connect) | |
| meld(develop, secure, join, unite, combine) | |
| merge(verb, meet, join, unite, combine) | |
| mix(verb, meet, develop, secure, join) |
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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> |