billion

billion /ˈbɪljən/ noun
plural billion or billions
billion
/ˈbɪljən/
noun
plural billion or billions
Britannica Dictionary definition of BILLION
[count]
1 
: the number 1,000,000,000 : one thousand million
2 
: a very large amount or number
— often plural
3 
British, old-fashioned : the number 1,000,000,000,000 : trillion

— billionth

/ˈbɪljənθ/ adjective

— billionth

noun, plural billionths [count]