Focus on the pronunciation of billion
English definition of “billion”
billion noun [C]
is over a/one billion.
is a billion-dollar
.Cardinal numbers, including nought and zero › UK old-fashioned 1,000,000,000,000 Note: This number is now called a trillion.Cardinal numbers, including nought and zero billions of sth informal › a very
: There were billions of
.Cardinal numbers, including nought and zero