91 entries under extend topic. ×

47
strengthen(verb, support, hold, close, get)
25
fortify(verb, support, close, help, set)
24
brace(noun, verb, support, hold, close)
24
support(verb, hold, help, fix, advance)
21
buttress(verb, support, hold, close, help)
16
bolster(verb, support, hold, help, fix)
15
intensify(verb, support, get, advance, increase)
15
augment(verb, support, get, help, advance)
13
boost(verb, support, get, help, advance)
11
increase(verb, support, get, increase, develop)
11
sustain(verb, support, hold, help, increase)
11
harden(verb, support, close, set, increase)
11
enlarge(verb, support, get, advance, increase)
11
toughen(verb, support, close, set, fix)
9
restore(verb, support, fix, increase, encourage)
8
amplify(verb, get, advance, increase, develop)
8
confirm(verb, support, increase, encourage, establish)
8
enhance(verb, support, get, advance, increase)
8
invigorate(verb, support, increase, encourage, raise)
8
magnify(verb, get, advance, increase, develop)
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APASmart Define. (2015). reinforce thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/reinforce/thesaurus/synonyms
ChicagoSmart Define. 2015. "reinforce thesaurus" https://smartdefine.org/reinforce/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, reinforce thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/reinforce/thesaurus/synonyms>.
MLASmart Define. "reinforce thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/reinforce/thesaurus/synonyms>