72 entries under secret topic. ×

1
huggermugger(adjective, show)
1
off the record(expression, adjective, idiom, separate)
1
on the QT(expression, idiom, mysterious, reticent)
1
on the sly(expression, idiom, private, hidden)
1
tucked away(expression, close, quiet, hidden)
0
creep(hidden, spy)
0
intelligence(hidden, spy)
0
separate
0
spy
0
stealth(hidden, spy)
0
top-secret(clandestine, underground, undisclosed)
0
unauthorized(private, hidden, sneaky)
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APASmart Define. (2015). covert thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/covert/thesaurus/synonyms
ChicagoSmart Define. 2015. "covert thesaurus" https://smartdefine.org/covert/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, covert thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/covert/thesaurus/synonyms>.
MLASmart Define. "covert thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/covert/thesaurus/synonyms>