A marvel; an astonishing or surprising thing or event. This expression, often used sarcastically, implies that something is (or is scarcely) worthy of being classed with the so-called seven wonders of the ancient world: the Pyramids of Egypt, Hanging Gardens of Babylon, Tomb of Mausolus, Temple of Diana at Ephesus, Colossus of Rhodes, statue of Jupiter by Phidias, and the Pharos of Alexandria. The English novelist Maria Edgeworth wrote in a letter in 1831, “A spoiled child of 30 whose mother and father . . . think him the 8th wonder of the world.” See also nine-day wonder.