This is the 2718th most frequent German word.
gewisser
"Gewisser" means "certain" or "particular" in English.
The word 'gewisser' is used here to mean 'certain' or 'indefinable,' indicating a quality that is recognized but not exactly defined.
Er hat einen gewissen Charme.
He has a certain charm.
In this sentence, 'gewisse' modifies 'Möglichkeit,' suggesting an uncertain but existent chance of occurrence.
Es besteht eine gewisse Möglichkeit, dass es heute regnet.
There is a certain possibility that it might rain today.
'Gewisse' is employed to highlight particular items from a group, implying they require attention prior to the main event.