D defs.my
Entry 1 sense Webster, 1913

Millionaire

/mĭlˌ-yən-ĕr'/ · Mil·lion·aire · IPA /ˌmɪl.jəˈnɛɹ/
01 n. One whose wealth is counted by millions of francs, dollars, or pounds; a very rich person; a person worth a million or more.
  1. 1.
    One whose wealth is counted by millions of francs, dollars, or pounds; a very rich person; a person worth a million or more.