Usages of kesin
kesinlik
definiteness, absoluteness, certainty; finality
Onun günahı çoktur kesin, Kamil'e güvenme.
His sins are many(probably) for sure, don't trust Kamil.
Turkish may come off as an odd language from time to time. Because it is.
We use words like "kesin" (certainly) even though the sentence is about probabilities. We like to be absolute about stuff I guess.
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