if something sees you out, it lasts longer than the time you live
Example: He will see out the year remaining on his contract.
to celebrate the end of a year
Example: I can see myself out.
to continue to the end of a period of time or an activity
Example: My secretary will see you out.
to find your way out of a place that you are visiting without any help
Example: These are good strong shoes and they’ll probably see me out.
to go with someone to the door when they are leaving in order to say goodbye to them