Means "wisdom, knowledge" in Sanskrit.
Vivek is a hindi word which literally means "intellgence" or the wisdom or knowledge. It's this very unique feature or quality of human being gifted by the GOD to humans which makes it a completely different form of living being from animals and plants.
It's the knowledge that helps him in differentiating what is right and what is wrong.
It's only through vivek that a man can realise god and its inner self.
Vivek (actor) (Tamil movie comedian)
Vivek Oberoi (Bollywood actor)