For hunting game, the range and the penetration needed to assure a clean kill must both be considered.

But the President apparently needed to assure and be reassured.

Big international institutions need to assure that their policies work for all levels of society.

The federal government needs to assure the American public that we are completely prepared to respond to emergency situations.

He looked around the room, taking stock, as if needing to assure himself that they had not appropriated anything.

That, of course, is what he needs to assure his re-election in 1992.

But they have educated the country on why we, like all other industrialized societies, need national measures to assure us medical care.

"We also need to assure ourselves that nothing has happened to her."

Did he need to assure himself she was still safe beside him?

I didn't need the old ones to assure me of such a truth.