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billionth plural

bil·lion

The plural form of billionth is billionths

B b

Definitions

  • noun plural billionth a cardinal number represented in the U.S. by 1 followed by 9 zeros, and in Great Britain by 1 followed by 12 zeros. 1
  • noun plural billionth a very large number: I've told you so billions of times. 1
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