The two had a nodding acquaintance that developed into a date four years later.

I did not know your parents beyond a nodding acquaintance.

With only a nodding acquaintance remaining between them, she was left pretty much on her own.

But, as often happened, the official and the real had only a nodding acquaintance with each other.

Should I not, then, have more than a nodding acquaintance with it?

And still I maintained no more than a nodding acquaintance with him.

I would say most people before the crash had a nodding acquaintance with economics.

Don't any of you have even a nodding acquaintance with psychology?

You will now have at least a nodding acquaintance with twelve reference books.

My secondary support group is a woman I hardly know, a nodding acquaintance until recently.