Synonyms|30Antonyms|1|Broader|0Narrower|0Related|5
4
rest assured
1
bet on
1
gamble on
1
go without saying(expression, idiom)
1
know
0
assure(verify, ensure)
0
assured
0
be
0
cinch(verb, verify, ensure)
0
clinch(verb, see, understand, identify, distinguish)
0
complete(verb, verify, ensure)
0
ensure(verb, verify)
0
have a lock on(verb, expression, idiom, verify, ensure)
0
ice(verb, verify, ensure)
0
insure(verb, verify, ensure)
0
lock(verb, verify, ensure)
0
lock on(verb, expression, verify, ensure)
0
lock up(verb, expression, verify, ensure)
0
make certain(verb, expression, verify, ensure)
0
make sure(verb, expression, verify, ensure)
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APASmart Define. (2015). know for certain thesaurus. Retrieved September 20, 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 20, 2026).
HarvardSmart Define 2015, know for certain thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/know_for_certain/thesaurus/synonyms>.
MLASmart Define. "know for certain thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/know_for_certain/thesaurus/synonyms>