128 entries under idiom topic. ×

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promulgate a requisition(expression, command)
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promulgate an order(expression, command)
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put flea in ear(verb, expression, suggest, mention)
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put one wise(verb, expression, alert, warn)
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quite an event
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raise the finger(expression, indication)
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raise the hand(expression, indication)
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rear guard(expression, warning)
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run off at mouth(expression, declare, proclaim, publicize)
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saw the air(expression, indication)
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say in passing(verb, expression, suggest, mention)
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short comments
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sign of respect(noun, expression, greeting, salute)
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sound of trumpet(expression, alarm)
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sticking out like a sore thumb(adjective, see)
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tip the wink(expression, indication)
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trade mark
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trade name
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traffic lights
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undercover agent(expression, warning)
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APASmart Define. (2016). signal thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/signal/thesaurus/synonyms
ChicagoSmart Define. 2016. "signal thesaurus" https://smartdefine.org/signal/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, signal thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/signal/thesaurus/synonyms>.
MLASmart Define. "signal thesaurus" 1 March 2016. Web. 30 September 2026. <https://smartdefine.org/signal/thesaurus/synonyms>