1. a person whose wealth amounts to multiple billions of dollars or other currency units

Examples

• The tech entrepreneur became a multibillionaire after his company went public.
• Several multibillionaires have pledged to donate most of their wealth to charity.
• The multibillionaire’s yacht was larger than most cruise ships.
• Forbes magazine tracks the world’s multibillionaires on its annual rich list.
• The multibillionaire invested heavily in space exploration companies.
• Only a few dozen multibillionaires exist worldwide.