The answer to the cryptogram "'n Kus kan best gezellig zijn" (4 letters) is ZOEN (Kiss).
ZOEN is a Dutch word for kiss.
The phrase "'n Kus kan best gezellig zijn" translates to "A kiss can be quite cozy" in English. This suggests that the answer to the cryptogram should be a word related to affection or intimacy.
ZOEN is the only four-letter word in Dutch that fits the meaning of the cryptogram and is related to affection.
Therefore, the solution to the cryptogram is ZOEN.
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