What does the reported runway condition WET mean?

Question

Question PPL(A) - Private Pilot License - Air Law

QuizVDS · Accepted Answer

The surface of the runway is soaked, but there are no significant patches of standing water

QuizVDS · Answer

Some water patches are visible

QuizVDS · Answer

A large part of the surface is flooded

QuizVDS · Answer

The runway is clear of water, ice, and snow

PPL(A) EN - Id 67 - What does the reported runway condition "WET" mean?