This is the 26th most frequent Chinese word.
已
"Already" or "finished."
Used as an adverb to indicate an action that has been done already.
她已完成了作业。
She has already completed her homework.
Forms part of the set phrase '已经' to emphasize that something has already occurred.
过去的事情已经过去了。
What has happened in the past is already gone.
Acts as a standalone aspect marker indicating a completeness or finality in the statement.