multimillionaire vs. millionaire
[muhl-tee-mil-yuh-nair, muhl-tahy-]
/ ˌmʌl tiˌmɪl yəˈnɛər, ˌmʌl taɪ- /
noun
noun
-
a person whose wealth amounts to a million or more in some unit of currency, as dollars.
-
any very rich person.