0 to go to the place that someone is leaving from in order to say goodbye to them: --
My parents saw me off at the airport.
1 to send away someone who is attacking you or who is not wanted, usually forcefully: --
The caretaker ran out and saw off the boys who had been damaging the fence.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
see sb off