This is the 5268th most frequent Turkish word.
kanunların
"Kanunların" means "of the laws" or "the laws'."
The word "kanunların" is used in the possessive form (of the laws) to express a relationship between the laws and their need for change.
Kanunların değişmesi gerektiğini düşünüyorum.
I think that the laws need to be changed.
Here, "kanunların" is used with "önünde" (in front of), specifying the spatial or metaphorical domain of the laws.
Herkesin kanunların önünde eşit olduğunu unutma.
Don't forget that everyone is equal before the laws.
In this sentence, "kanunların" suggests ownership or specificity of the details associated with the laws.