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to end; to come to an end; to finish; to close; to be over
to finish; to complete; to conclude
to finish doing
to be past its (one's) prime
to be awful; to be terrible; to suck; to be hopeless
会議が無事に了った。
The meeting ended without issues.
仕事が了るまで待ってね。
Wait until the work is done.
イベントが了ったらすぐに片付けよう。
Let's clean up right after the event ends.