What exactly does "difficulty" mean?

[fingolfin0]

This page says that difficulty "is the probability of ..." But this is complete nonsense, because the probability cannot be more than one. Help me figure out what is a "difficulty" in Kaspa?

I'm trying to find out the difficulty using kaspactl GetBlockDagInfo. There is a formula that says that the expected number of hashes we need to calculate to find a block with difficulty D is D * 2**48 / 0xffff. This formula works for Bitcoin, but gives absurd results for Kaspa.