I am engaged.
to do one's business―transact business―(人に頼まれた用なら)―execute a commission―do one a service―(使い歩きの用なら)―run errands―undertake messages
兼用する
to use a thing for more than one purpose
a cabinet
〜用
to be fit for use―fit for service
to be useful―of use―serviceable―of service―good for something
I have urgent business―pressing business.
to use something personally
用をたす
to do one's business―transact business―(人に頼まれた用なら)―execute a commission―do one a service―(使い歩きの用なら)―run errands―undertake messages―(便通の意味なら)―do one's needs