i Register
In some senses, mansion is marked as obsolete, UK. Watch for register when choosing this word.
noun
A large luxurious house or building, usually built for the wealthy.
A luxurious flat (apartment).
An apartment building.
A house provided for a clergyman; a manse.
A stopping-place during a journey; a stage.
According to that Cabaliſticall Dogma: If Abram had not had this Letter [i.e., ה (he)] added unto his Name he had remained fruitleſſe, and without the power of generation: […] So that being ſterill before, he received the power of generation from that meaſure and manſion in the Archetype; and was made conformable unto Binah.