「官宣」是什么意思？

「官方宣布」的缩写；2018年因明星以「官宣」二字公布婚讯而爆火，后泛指正式公开消息，尤其恋情、喜讯。

ENShorthand for "official announcement"; exploded after a 2018 celebrity wedding post, now used for any formal public statement, especially relationships.