Here are some examples:
* Je connais Paris. (I know Paris.)
* Tu connais cet homme? (Do you know this man?)
* Connais-tu le nom de cette chanson? (Do you know the name of this song?)
It can also mean to be acquainted with or to be familiar with:
* Je connais bien cette ville. (I know this city well.)
* Je connais son travail. (I know his work.)
It's important to note that "connaître" is a regular verb that conjugates with the -re ending.