55 entries under idiom topic. ×

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in the background(expression, mysterious, private, reticent)
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in the dark(expression, mysterious, private, reticent)
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keep free
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kept watch
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not born yesterday on the lookout(expression, wary, mistrustful, distrustful)
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on the QT(expression, reserved, mysterious, private)
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on watch(expression, care)
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on your guard(expression, alert, attentive, watchful)
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put in gaol
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safe as houses(expression, adjective, safe, sheltered)
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solid as a rock(expression, adjective, safe, sheltered)
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stand firm
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wide awake(expression, care)
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with care
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with reservation
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APASmart Define. (2015). guarded thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/guarded/thesaurus/synonyms
ChicagoSmart Define. 2015. "guarded thesaurus" https://smartdefine.org/guarded/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, guarded thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/guarded/thesaurus/synonyms>.
MLASmart Define. "guarded thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/guarded/thesaurus/synonyms>