6 entries under strengthened topic. ×

4
reinforced(adjective, hardened, supported, fortified)
3
bolstered(verb, adjective, hardened, approved, supported)
0
built-up(adjective, hardened, supported, fortified)
0
built up(expression, adjective)
0
pasted on(expression, adjective)
0
set off(expression, adjective)
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APASmart Define. (2015). backed thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/backed/thesaurus/synonyms
ChicagoSmart Define. 2015. "backed thesaurus" https://smartdefine.org/backed/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, backed thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/backed/thesaurus/synonyms>.
MLASmart Define. "backed thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/backed/thesaurus/synonyms>