mansion

n. very large and stately home

A mansion is a large dwelling house typically built for the wealthy. The word itself derives (through Old French) from the Latin word mansus the perfect passive participle of manere "to remain" or "to stay". In the Roman Empire, a mansio was an official stopping place on a Roman road, or via, where cities sprang up, and where the villas of provincial officials came to be placed. The Scots word "manse" originally defined a property large enough for the Minister of the parish to maintain himself, but a mansion is no longer self-sustaining in this way (compare a Roman or medieval villa). 'Manor' comes from the same root — territorial holdings granted to a lord who would remain there — hence it can be seen how the word 'Mansion' came to have its meaning.
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Noun
1. (astrology) one of 12 equal areas into which the zodiac is divided
(synonym) sign of the zodiac, star sign, sign, house, planetary house
(hypernym) region, part
(hyponym) Aries, Aries the Ram, Ram
(part-holonym) zodiac
(classification) astrology, star divination
2. a large and imposing house
(synonym) mansion house, manse, hall, residence
(hypernym) house
(hyponym) manor, manor house
(part-meronym) manor hall, hall

n. mansion, very large and stately home

n. mansion, very large and stately home