“已”的意思是“已经”，表示事情在过去发生了或完成了。

The meaning of "已" is "already," indicating that something happened or was completed in the past.

这个字比较正式，常常用在书面语里，口语中我们更常说“已经”。

This character is more formal and often used in written language; in spoken language, we more commonly say "已经".