No leads, not a single direction to take that might turn him back on their trail.
There was not a single direction marked for us to follow.
"I'm saying all four factors point in one single direction."
The result is that you get a rather high contrast image in more than just a single direction.
The only chance to save both men lay in a single direction.
But fire from a single direction could be deadly, too.
On the starting gun, the runners run off in every single direction.
He didn't create a school in the specific sense of some single narrow professional direction.
I believe that our conclusions point in a single direction.
We must not all decide strictly in a single direction without looking first to the left or right for ways of bringing things together.