This is the 32nd most frequent Urdu word.
خلاف
Against; Opposite; Contrary.
The word 'خلاف' is used here to signify 'being opposed to' or 'contrary to' something, in this case, the law.
یہ قانون کے خلاف ہے۔
This is against the law.
The word 'خلاف' here denotes opposition or contention, as the action is directed against a group or individuals.
ہم نے ان کے خلاف مظاہرہ کیا۔
We protested against them.
In this context, 'خلاف' signifies divergence or being contrary to something anticipated, here the expectations.