mansion

noun
UK /ˈmæn.ʃən/
US /ˈmæn.ʃən/

A mansion is a very big and fancy house.

The rich family lives in a huge mansion with a pool.


OTHER MEANINGS

2. A large, impressive building, especially one used for a special purpose.

The old mansion now serves as a museum.

3. A separate apartment or dwelling within a larger building, especially in British usage.

They rented a small mansion on the second floor.

4. A grand residence of a lord or noble in historical contexts.

The lord returned to his mansion after the war.