trillion ,billionaire

"The cardinal number that is equal to 10 to the 12th power." Does that help you understand how much a trillion dollars is? ...



trillion Hide phonetics
determiner, noun [C], pronoun plural trillion or trillions
1 the number 1 000 000 000 000

2 INFORMAL an extremely large number:
I've never seen so many birds - there were trillions of them!

trillionth Hide phonetics
determiner, noun [C], pronoun


billion Hide phonetics
noun [C]
1 1 000 000 000:
Cosmetics is a billion dollar industry.

2 UK OLD-FASHIONED 1 000 000 000 000
NOTE: This number is now called a trillion.

billionaire Hide phonetics
noun [C]
a person whose wealth is at least 1 000 000 000 in their country's money