penta-millionaire
n.— «There’s also been a steep rise in the number of what Phoenix refers to as “penta-millionaire” households—those with at least $5 million in liquid assets. There are now 755,000 of them, up 47 percent since 2003.» —“Mixed Blessings” by Mark Dolliver Adweek Feb. 26, 2007. (source: Double-Tongued Dictionary)
Further reading
We use the term Milky Way for that glowing arc across the sky. But how people picture it varies from culture to culture. In Sweden, that starry band goes by a name that means “Winter Street,” and in Hawaii, a term for the Milky Way...
The words tough, through, and dough all end in O-U-G-H. So why don’t they rhyme? A lively new book addresses the many quirks of English by explaining the history of words and phrases. And: have you ever been in a situation where a group makes...