noun
class reunion; gathering of classmates
Refers to a reunion or social gathering of people who entered a school, company, or organization in the same year. Often used for school reunions.
来月、高校の同期会がある。
There's a high school class reunion next month.
同期会で久しぶりに友達に会った。
I met friends for the first time in a while at the class reunion.
Compound of 同期 (same period/year) and 会 (meeting/gathering).