3
stiffener(noun, hold, block, back, base)
3
sustenance(noun, support, help, benefit, aid)
3
underpinning(noun, support, hold, block, back)
2
backup(noun, support, help, praise, benefit)
2
reinforcing(advance, increase, progress, development, growth)
2
additament
2
additive(noun, extra, supplement, appendage, add-on)
2
additum
2
advantage
2
agency(noun, hold, block, back, base)
2
amplification(noun, increase, rise, growth)
2
annexe
2
appendage(noun, extra, supplement, add-on)
2
arm(noun, support, stay, bar, prop)
2
attachment(noun, extra, supplement, appendage, add-on)
2
auxiliaries
2
bracer(noun, support, stay, bar, prop)
2
coating(noun, verb, support, strengthening)
2
concentration(union, alliance, merging, strengthening)
2
condensation(union, alliance, merging, strengthening)
11 years ago|7k views|share |citing 
APASmart Define. (2015). reinforcement thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/reinforcement/thesaurus/synonyms
ChicagoSmart Define. 2015. "reinforcement thesaurus" https://smartdefine.org/reinforcement/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, reinforcement thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/reinforcement/thesaurus/synonyms>.
MLASmart Define. "reinforcement thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/reinforcement/thesaurus/synonyms>