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
What kind of book do people ask for most often in prison? Romance novels? No. The Bible? No. The most requested books by far are … dictionaries! A number of volunteer organizations gather and distribute used dictionaries to help inmates with...
Mary Beth in Greenville, South Carolina, wonders: Why do we say four-oh-nine for the number 409 instead of four-zero-nine or four-aught-nine? What are the rules for saying either zero or oh or aught or ought to indicate that arithmetical symbol...