acquainted with

*acquainted with someone

[of a person] known to someone; [of a person] having been introduced to someone. (*Typically: be ~; become ~; get ~.) We are only acquainted with each other. We are certainly not what you would call close friends.

*acquainted with something

familiar with something; able to understand or recognize something. (*Typically: be ~; become ~; get ~.) Tom is fully acquainted with the way we do things.
References in classic literature ?
The general who does not understand these, may be well acquainted with the configuration of the country, yet he will not be able to turn his knowledge to practical account.
At that age I became acquainted with the celebrated poets of our own country; but it was only when it had ceased to be in my power to derive its most important benefits from such a conviction that I perceived the necessity of becoming acquainted with more languages than that of my native country.
Plornish observed, not Smiling in return, And yet he hadn't the pleasure of being acquainted with the gentleman, neither.
He had been prepared to find her a most difficult young woman to get acquainted with.
Astor became acquainted with a countryman of his, a furrier by trade.
Almost smiling, he gazed straight into her eyes with such an enraptured caressing look that it seemed strange to be so near him, to look at him like that, to be so sure he admired her, and not to be acquainted with him.
She placed a card on the doctor's writing-desk, and added: "I have become acquainted with the lady, by being one of the lodgers in her house.
May I hope you will excuse me when I have made you acquainted with my motive?
She caught it instantaneously; and recovering her courage with the feeling of safety, soon added, more composedly, "Are you acquainted with Mr Elliot?
The house is taken; the name is found; and I am personally acquainted with Mrs.
If they could not teach the white men their practical stoicism, they at least made them acquainted with the edible properties of roots and wild rosebuds, and furnished them a supply from their own store.
Your kindness affects me much, monsieur: but it is a reason why I should make you acquainted with one circumstance without any delay.
You are acquainted with the case, and the case naturally goes to you.
I do not often walk this way now," said Emma, as they proceeded, "but then there will be an inducement, and I shall gradually get intimately acquainted with all the hedges, gates, pools and pollards of this part of Highbury.
I am afraid I shall trouble you with many questions about yourself when we become better acquainted with each other.