Class Reunion
School Reunion, Alumni Association
noun
A same window meeting is a meeting with people who spent a long time gazing out of the same classroom window as you. Who are those people? They're your former classmates, and this is a class reunion. It can also mean alumni association, which is still something you do with former classmates, so it makes sense.
This is a jukugo word that uses the on'yomi readings of the kanji. You didn't learn this reading for 窓, so here's mnemonic to help you:
If you have a class reunion coming up, you'd better work on your soul (そう). You want to make a good impression on all your old classmates, right? Well get to work on your soul right now, otherwise they might not be impressed.
一昨日、中学の同窓会に行ってきました。
The day before yesterday, I went to my junior high school class reunion.
小学校の同窓会の案内が来た。
I received an invitation to my elementary school reunion.
同窓会活動への同窓生の皆さまのご協力をお願いいたします。
We would like to ask for the cooperation of all alumni in the activities of our alumni association.