17 entries under idiom topic. ×

2
off the record(expression, adjective, adverb, secret)
1
behind closed doors(expression, adverb, secretly, confidentially)
1
in the background(expression, mysterious, reticent, taciturn)
1
in the dark(expression, mysterious, reticent, taciturn)
1
on the QT(expression, private, reticent, taciturn)
0
behind the curtain(expression, unknowing, hermetical, unbriefed)
0
behind the scenes(expression, unknowing, hermetical, unbriefed)
0
between you and me(expression, adverb, secretly, confidentially)
0
in a corner(expression, unknowing, hermetical, unbriefed)
0
in on the ground floor(expression, adverb, secretly, confidentially)
0
not for publication(expression, secret, private, confidential)
0
off the cuff(expression, adverb, secretly, confidentially)
0
out of it(expression, unknowing, hermetical, unbriefed)
0
out of public view(expression, unknowing, hermetical, unbriefed)
0
out of view(expression, unknowing, hermetical, unbriefed)
0
out to lunch(expression, unknowing, hermetical, unbriefed)
0
under the table(expression, unknowing, hermetical, unbriefed)
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APASmart Define. (2015). in private thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/in_private/thesaurus/synonyms
ChicagoSmart Define. 2015. "in private thesaurus" https://smartdefine.org/in_private/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, in private thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/in_private/thesaurus/synonyms>.
MLASmart Define. "in private thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/in_private/thesaurus/synonyms>