broad outline
rough outline
general outline

The general outline of this front line did not change until the Russian collapse in 1917.

His body described the general outline of a small mountain.

He hadn't known or particularly wanted to know the details, but the general outline wasn't a surprise.

The buildings which had been shown in general outline became more specific.

"I'd like to go over the general outline of the problem, and then open the floor for discussion."

I was only given a general outline of your proposed plan.

Still, the general outline of the resolution is pretty clear.

The general outline of the recommendations has been public for two weeks.

I still think that the general outline of the mission can be accomplished.

They have the same general outline but differ in some of the detail.