mansion

mansion is a Noun

Definition:

[1] A dwelling place, -- whether a part or whole of a house or other shelter. [Obs.] In my Father`s house are many mansions. John xiv. 2. These poets near our princes sleep, And in one grave their mansions keep. Den

[2] The house of the lord of a manor; a manor house; hence: Any house of considerable size or pretension.

[3] A twelfth part of the heavens; a house. See 1st House, 8. Chaucer.

[4] The place in the heavens occupied each day by the moon in its monthly revolution. [Obs.] The eight and twenty mansions That longen to the moon. Chaucer. Mansion house, the house in which one resides; specifically, in London and some other cities, the official residence of the Lord Mayor. Blackstone.