126 entries under secure topic. ×

32
reinforce(verb, support, hold, close, get)
31
fortify(verb, form, support, make, close)
28
brace(noun, verb, form, support, hold)
22
support(noun, verb, hold, help, give)
19
harden(verb, support, close, set, meet)
19
buttress(noun, verb, support, hold, close)
14
steel(verb, form, support, make, dull)
10
develop(verb, form, support, make, dull)
10
prop(verb, support, hold, help, fix)
10
shore up(verb, expression, phrasal verb, support, help)
9
build up(verb, expression, phrasal verb, form, support)
9
consolidate(verb, support, close, set, fix)
9
gird(verb, form, support, make, close)
8
step up(verb, expression, phrasal verb, support, advance)
7
concentrate(verb, charge, increase, develop)
7
lace(verb, hold, join, fasten)
6
prepare(verb, support, make, get, charge)
6
ready(verb, support, make, place, fix)
5
add to(verb, expression, support, help, charge)
4
condense(verb, develop, join, unite)
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APASmart Define. (2016). strengthen thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/strengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "strengthen thesaurus" https://smartdefine.org/strengthen/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, strengthen thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/strengthen/thesaurus/synonyms>.
MLASmart Define. "strengthen thesaurus" 3 March 2016. Web. 25 September 2026. <https://smartdefine.org/strengthen/thesaurus/synonyms>