- mausoleum⇄mausoleum, noun, pl.-leums,-lea.
1. a large, magnificent tomb, especially one above ground.
Ex. a ponderous mausoleum with a front wall of reinforced concrete (Newsweek).
2. (Informal, Figurative.) any large structure, building, or room - Mausoleum⇄Mausoleum, noun.
a magnificent tomb in southwest Asia Minor, at Halicarnassus, built in the 300's B.C. It was one of the seven wonders of the ancient world.