noun
business; errand; things to do
Refers to a specific task or obligation one needs to attend to, often outside the home. Commonly used in phrases like 用事がある (I have something to do) or 用事で出かける (go out on an errand).
今日はちょっと用事があって、早く帰ります。
I have a few things to do today, so I'll go home early.
母に
I went to the post office on an errand my mother asked me to do.