To give money or other compensation to in exchange for goods or services.
he paid her off the books and in kind where possible
To discharge, as a debt or other obligation, by giving or doing what is due or required.
he has paid his debt to society
To be profitable for.
It didn't pay him to keep the store open any more.
To give (something else than money).
to pay attention
To be profitable or worth the effort.
crime doesn’t pay
To discharge an obligation or debt.
He was allowed to go as soon as he paid.
To suffer consequences.
He paid for his fun in the sun with a terrible sunburn.
To admit that a joke, punchline, etc., was funny.
I'll pay that.