Mets fans have a history of letting the proprietors know (see 1979) when they don't like their product.

The proprietor saw the girl, and judging from the contempt on his face as he left, knew what he saw.

"You might have chosen a cantina where the proprietor doesn't know you."

The proprietor knows her well; she comes here often.

There is no other business I can think of where the proprietor knows absolutely that he will face bankruptcy every year.

Special diets are catered for, but please let the proprietors know in advance.

The proprietors of many neighborhood shops often know their customers by their first names.

The proprietor must know of its existence.

Harry Vincent's conjecture that the proprietor knew of the hiding place behind the wall was quite correct.

The proprietor knew him simply as Jake.