Synonyms|30Antonyms|1|Broader|0Narrower|0Related|5

20 entries under verb topic. ×

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cinch(verify, ensure)
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clinch(see, understand, identify, distinguish)
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complete(verify, ensure)
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ensure
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have a lock on(expression, idiom, verify, ensure)
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ice(verify, ensure)
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insure(verify, ensure)
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lock(verify, ensure)
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lock on(expression, verify, ensure)
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lock up(expression, verify, ensure)
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make certain(expression, verify, ensure)
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make sure(expression, verify, ensure)
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nail down(expression, verify, ensure)
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put on ice(expression, idiom, verify, ensure)
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seal(verify, ensure)
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secure(verify, ensure)
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set(verify, ensure)
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substantiate(verify, ensure)
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tell(understand, discern)
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verify
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APASmart Define. (2015). know for certain thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/know_for_certain/thesaurus/synonyms
ChicagoSmart Define. 2015. "know for certain thesaurus" https://smartdefine.org/know_for_certain/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, know for certain thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/know_for_certain/thesaurus/synonyms>.
MLASmart Define. "know for certain thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/know_for_certain/thesaurus/synonyms>