英和和英

It is a useful thing―a utility.

I have some business to attend to

I am engaged.

be of use to, be useful to

（契約）a valid contract―（約束）―a binding promise―（法律）―an effective law―a law in force―（演説）―an effective speech―（切符）―an avail able ticket―a good ticket

（法律なら）A law comes into effect―comes into force―becomes effective―becomes operative―（契約などなら）―A contract becomes valid―takes effect.

the quality of being useful and convenient

to last long―go far

the state of being useful

It is functioning

a thing that is useful

a substitution for something

I have urgent business―pressing business.

be in currency

usefulness of a thing

to be arrested

I have urgent business.

the state or quality of being convenient to use

to be used for a certain purpose

by messenger―per bearer

I have business with the master's family.

to have done with anything

have and exercise

be in common use

capable of being put to a profitable or practical use

capable of being put to good use

to do one's business―attend to business

to use something in a wasteful manner

ready for use

Make it easy to use