While schools must play a substantive role, they need partners in the challenge of helping students with the disorder.

But Mr. Bush did play a more substantive role in putting out one media fire.

There were relatively few substantive female roles (despite the increase in female studio executives).

Donald did not play a substantive role in the policies or practices of the Pioneer Fund.

Top Republicans say he will continue to play a substantive role though it remains undefined.

Its proponents insist that the federal government can play no substantive role in advancing science or technology.

What I'm doing now is playing a substantive role in this process that selects the leader of the free world.

"If the President wants us to take a more substantive role, then we're going to have to become more careful and less deferential."

His new approach meant, among other things, a more substantive role for the schools.

I think 100 or so years ago when the Government put them on reservations the men were really without a role, without a substantive role.