Graduation
noun, verbal noun, の adjective
The business of you graduating is your graduation. If you think about it, it's kind of a big business, getting you graduated from expensive schools. The graduation business focuses on graduations, and getting you there (hint: this business is a school, probably).
そつぎょう
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
日本では三月が卒業のシーズンです。
In Japan, March is graduation season.
アイドルグループTFG48のワニカニ子ちゃんが卒業を発表しました。
The WaniKaniko-chan of the idol group TFG48 has announced her graduation.
卒業しても、大人になっても、私たち、ずっと親友だよね？
Even after graduation, even after becoming adults, we'll always be best friends, right?