To See Off
To Put Off, To Pass On
transitive verb, godan verb
You know the words 見る and 送る by now, hopefully. Here you're "seeing" the "sending." You're seeing someone off, so this verb is to see off. This can also mean to put off or to pass on, since it's as though you're just passively seeing someone (or something) off rather than taking action and going with them.
The readings come from the vocab words 見る and 送る. Make sure you know those and you'll know this word's reading as well.
to put off a decision
to see off a car, to gaze after a car
to see someone off
I wonder which is harder, being the person who sees someone off or being one who is seen off by someone.
Koichi burst into tears after seeing them off.
He passed up a chance to go abroad.