Synonyms|81Antonyms|9|Broader|0Narrower|0Related|20
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hide out(expression, hide, stash, stow)
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hold tongue
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impede
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jam
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jaw
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keep a secret
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keep counsel
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keep secret(verb, expression, hide, stash, stow)
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keep silent
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keep to oneself(expression, idiom, hide, stash, stow)
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keep under wraps(verb, expression, idiom, hide, stash)
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keep under your hat(verb, expression, idiom, hide, stash)
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lock
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mum
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mute
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not tell a soul(verb, expression, idiom, hide, stash)
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obstruct
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occlude
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padlock
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palm(hide, stash, stow)
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APASmart Define. (2015). keep mum thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/keep_mum/thesaurus/synonyms
ChicagoSmart Define. 2015. "keep mum thesaurus" https://smartdefine.org/keep_mum/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, keep mum thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/keep_mum/thesaurus/synonyms>.
MLASmart Define. "keep mum thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/keep_mum/thesaurus/synonyms>