waiting room

a room for the use of persons waiting, as in a railroad station or a physician's office.

Origin of waiting room

First recorded in 1675–85

In the background, I could hear endless news updates about the massacre on the waiting-room TV.

Doctor Describes The Reality When a Child Is Shot |Christine Rizkalla |December 17, 2012 |DAILY BEAST
I went off to the Harem Serai at once, and presently the child was brought out into the waiting-room.

At the Court of the Amr |John Alfred Gray
One of the farm hands laughed and pointed with his thumb to the waiting-room.

A Romance of Billy-Goat Hill |Alice Hegan Rice
If there was a condenser then that number of electrons would leave one waiting-room and would enter the other.

Letters of a Radio-Engineer to His Son |John Mills

The waiting-room was so bare, so cold, so grey, so like a sepulchre.

Waysiders |Seumas O'Kelly
As for the waiting-room at the tribunal, a word in your ear: chief agents of police know strange secrets.

After Dark |Wilkie Collins

waiting room

a room in which people may wait, as at a railway station, doctor's or dentist's office, etc