Acquaintance. A person whom we know well enough to borrow from, but not well enough to lend to.

I was feeling well enough to eat the pears.

It is not enough just to wish well; we must also do well.

Acquaintance is a degree of friendship called slight when its object is poor and obscure, and intimate when he is rich and famous.

ACQUAINTANCE, n. 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.

If you can't explain it simply, you don't understand it well enough.