Morning-room

The Colonel had been sitting in the dining-room, but hearing that his wife had returned he joined her in the morning-room.

Source: tatoeba (7025608)

The Colonel had been sitting in the dining-room, but hearing that his wife had returned he joined her in the morning-room. The coachman saw him cross the hall and enter it. He was never seen again alive.

Source: tatoeba (7025609)

Mr. Lawson conducting Adeline, they passed into the morning-room, from the windows of which the varied features of the Dale were seen.

Source: wiktionary

It was almost nine o’clock before he reached the club, where he found Lord Henry sitting alone, in the morning-room, looking very much bored.

Source: wiktionary