145 entries under expression topic. ×

10
off the record(adjective, idiom, intimate, personal)
5
buck private(noun, idiom)
4
not for publication(adjective, idiom, secret, confidential)
4
common soldier(noun, idiom)
4
private soldier(noun, idiom, service, combatant)
3
enlisted man(noun, idiom)
3
in private(idiom, mysterious, secret, reticent)
3
in secret(idiom, concealment)
3
on the sly(idiom, secret, hidden, sneaky)
3
top secret(secret, clandestine, underground, undisclosed)
2
behind closed doors
2
not general(adjective, separate, simple, special)
2
not public(adjective, separate, simple, special)
2
under one's hat(adjective, idiom, adverb, intimate)
2
without equal(adjective, separate, simple, special)
1
6th heavenly stem
1
behind the scenes(adjective, idiom, intimate, personal)
1
cozy with(adjective, familiar, loving, intimate)
1
cut off(close, quiet, remote, isolated)
1
enlisted person(noun, service, soldier, sapper)
<123458>
10 years ago|20k views|share |citing 
APASmart Define. (2016). private thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/private/thesaurus/synonyms
ChicagoSmart Define. 2016. "private thesaurus" https://smartdefine.org/private/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, private thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/private/thesaurus/synonyms>.
MLASmart Define. "private thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/private/thesaurus/synonyms>