Wait a minute, I need to finish this task.

She is waiting upon her guests at the party.

I waited upon him at the restaurant.

She waits upon her guests with great hospitality.

She has been waiting in the wings for her chance to shine.

The lady in waiting attended to the queen's needs.

I will wait and see what happens.

I am waiting a minute for my friend to arrive.

I waited a minute for the bus.

She waits a minute before answering the phone.