129 entries under secure topic. ×

14
imprison(verb, hold, take, control, close)
9
confine(verb, stop, hold, take, control)
8
shut up(verb, expression, phrasal verb, close, keep)
5
close(verb, hold, fix, settle)
5
lock(verb, close, fix, settle)
4
bar(verb, stop, close, prevent)
4
close up(verb, expression, phrasal verb, close)
4
padlock(verb, fix, settle, catch)
3
bolt(verb, close, fix, settle)
3
cage(noun, verb, hold, close, keep)
3
fasten(verb, hold, close, fix)
3
latch(verb, bar, fasten)
3
seal(verb, close, bar, confirm)
3
shut(verb, close, bar, fasten)
2
access(verb, take, make, get, promote)
2
annex(verb, hold, take, make, get)
2
barricade
2
batten down(verb, expression, phrasal verb, close, fix)
2
button(verb, fix, settle, catch)
2
button up(verb, expression, bar, fasten)
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APASmart Define. (2015). lock up thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/lock_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "lock up thesaurus" https://smartdefine.org/lock_up/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, lock up thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/lock_up/thesaurus/synonyms>.
MLASmart Define. "lock up thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/lock_up/thesaurus/synonyms>