The notion that a teenager could consider a mother or father cool raises the eyebrow of many parents, and not a few experts in adolescent development.

The notion of building extensive fiber optic networks may raise painful memories for many investors.

And the notion of a merger raises a number of significant questions.

This notion raises problems for some theorists:

This notion raises two important issues that seem to be ignored by both parties in this tug of war.

Still, the notion of malls as public spaces raises security issues for developers.

The notion of white privilege raises the question of the difference between rights and privileges.

The notion of relative autonomy raises the question of the limits within which the state's autonomy may vary.

The whole notion will surely raise eyebrows.

For Business Week, "the notion of individuals cloning themselves is not only repugnant but also raises important questions," including legal ones that "boggle the mind."