A sitting-room in a big house, usually in the past, where people stayed in daylight only.(noun)
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Use "morning room" in a sentence
"In the morning room Mercer was playing his little pavane."
"The Dowager Duchess of Middleburgh was seated at the escritoire in the morning room of her house in Berkeley Square when her grandson was announced."
""I have seen it a thousand times at the bottom of her sampler, father, the one that is framed and hanging in her morning room -- Rachel Mostyn, November, Anno Domini, 1827.""