downstairs *
down the stairs
on a lower floor
below ***

He went down the stairs again, outside and across the street to his car.

She led the way down the stairs almost at a run.

He went down the stairs, into the lower level of the house.

The boy turned and led the way down the stairs, taking them two at a time.

He left the room and went down the stairs to the main door of the house.

He turned and led the way back down the stairs.

Finally she heard her father as he went down the stairs.

I could hear him making his way quickly down the stairs.

They left the room, went down the stairs and on out into the Street.

As he went down the stairs, the girl came after him.