au fait

Lady Perry had noticed enough to be au fait with the situation at a word.

Wherefore she knew that her gray foulard was distinctly not au fait.

If poets wrote only of things with which they were au fait, where would all our poetry be?

Yes, but it would not be au fait for Madame to wear darned stockings.

I have told him nothing, yet he seems to be au fait to the whole business.

Meanwhile Jessie was making Maxwell au fait with the situation.

I will keep you "au fait" of all that passes in this country if you wish it.

I will undertake that when you leave this you shall be au fait at everything.

Now, this is a subject on which I flatter myself I really am au fait.

His lordship appears to be au fait on every subject one can possibly imagine.