You can both deactivate or completely delete
your Facebook account. To
deactivate go to the down arrow menu (top right), then Settings &
Privacy > Settings > Your Facebook Information > Deactivation and
Deletion. Choose which one you want and follow the prompts to deactivate
or delete it. If you deactivate, all you have to do to reactivate is log
back in. You may want to take a complete backup before you delete the
entire thing. You have 30 days to cancel the deletion of your account if
you made a mistake.