billion years

English - English

Definition of billion years in English English dictionary

b.y

Hyphenation

bil·lion years

Turkish pronunciation

bîlyın yırz

Pronunciation

/ˈbəlyən yərz/ /ˈbɪljən jɜrz/

Videos

... And in fact, its creation, over four billion years ago, ...

... Two and a half billion years ago, ...