see (one) off
To accompany one to the place where they will be departing and wish them farewell. John offered to see me off to the train station, but I was so sad to leave that I preferred to go alone. I'm just going to see our guests off. I'll be back shortly.
see someone off something
to accompany someone who is leaving something; to escort someone away from something. I saw the elderly lady off the station platform safely. The emcee saw the contestants off the stage.
see someone off
to accompany one to the point of departure for a trip and say good-bye upon departure. We went to the train station to see Andy off. We saw off all the scouts going to camp.
see someone off
Take leave of someone, as in We saw our guests off at the door, or They came to the airport to see us off. This expression was first recorded in 1809. Also see see out, def. 1.
see off
v. To be with someone when he or she is leaving in order to say goodbye: We saw off our guests at the door. They came to the airport to see us off.