There were more students at my high school than there are billionaires in the world. - Dünyada benim lisemdeki öğrencilerden daha fazla milyarder var.
There are about 1,800 billionaires in the world. - Dünyada yaklaşık 1.800 milyarder vardır.
Somebody whose wealth is greater than one billion (109) dollars, or other currency
A billionaire is an extremely rich person who has money or property worth at least a thousand million pounds or dollars. someone who has more than a billion dollars or pounds