English version

for certain

From Longman Dictionary of Contemporary Englishfor certainfor certainCERTAINLY/DEFINITELYwithout doubt syn for sureknow/say (something) for certain I know for certain it’s in here somewhere.that’s/one thing’s for certain One thing’s for certain, he won’t be back. certain
Examples from the Corpus
know/say (something) for certainI didn't really know this for certain.
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