A person whom we know well enough to borrow from, but not well enough to lend to. A degree of friendship called slight when its object is poor or obscure, and intimate when he is rich or famous.

A state of being acquainted, or of having intimate, or more than slight or superficial, knowledge; personal knowledge gained by intercourse short of that of friendship or intimacy; as, I know the man; but have no acquaintance with him.

A person or persons with whom one is acquainted.

Someone you see occasionally or know casually, but who is not close to you like a friend.

a relationship less intimate than friendship

a person with whom you are acquainted; "I have trouble remembering the names of all my acquaintances"; "we are friends of the family"

a person that you know but do not know very well and therefore do not consider truly a friend

a person that you know but who is not a close friend

a person we see from time to time, know in passing and have some basic knowledge of their background

a person whom one knows but who is not a particularly close friend