Conocer means to know a person, to be familiar with a place. With places, conocer is often translated as to have been in English. - ¿Conoces a Pedro Gómez?Do you know Pedro Gómez? - No, pero conozco a su hermana.No, but I know his sister. - ¿Conocen Uds. la universidad? Are you familiar with the university? - No, no la conocemos. No, weve never been there.