126 entries under secure topic. ×

4
entrench(verb, support, establish, protect)
4
establish(verb, hold, open, start)
4
mass(verb, get, charge, increase, develop)
4
tighten(verb, hold, fix, join)
4
unite(verb, hold, charge, join)
3
cement(verb, hold, close, set, fix)
3
fix(verb, form, hold, make, close)
3
set(verb, support, hold, close, fix)
3
settle(verb, form, hold, make, close)
3
string(verb, hold, join, fasten)
3
thicken(verb, close, set, fix, advance)
2
amalgamate(verb, close, set, charge, fix)
2
amass(verb, increase, develop, reduce)
2
band(verb, hold, meet, develop)
2
batten(verb, hold, join, fasten)
2
belt(verb, hold, join, fasten)
2
bond(verb, hold, join, connect)
2
close(verb, hold, set, fix)
2
compact(verb, close, set, fix, develop)
2
connect(verb, hold, meet, develop)
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APASmart Define. (2016). strengthen thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/strengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "strengthen thesaurus" https://smartdefine.org/strengthen/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, strengthen thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/strengthen/thesaurus/synonyms>.
MLASmart Define. "strengthen thesaurus" 3 March 2016. Web. 26 September 2026. <https://smartdefine.org/strengthen/thesaurus/synonyms>