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What does BYR stand for? 

What does BYR mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: BYR.

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BYR

Books for Young Readers

Community » Educational

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BYR

Baruya

Regional » Language Codes (3 Letters)

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BYR

Bake Young Realty

Business » Companies & Firms

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BYR

BackYard Rinks

Sports » Skating

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BYR

Baytree Real Estate

Business » Companies & Firms

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BYR

Bring Your Reefers

Sports

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BYR

Burey Gold Ltd

Business » ASX Symbols

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BYR

Bendigo Youth Racing

Community » Youth

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BYR

Bô Yin Râ

Community » Famous & Celebs

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BYR

Black Yellow Red

Miscellaneous » Unclassified

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BYR

Burlington Youth Residence

Community » Forums

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BYR

Bayer Ord

Business » London Stock Exchange

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BYR

Badger Yellow Ribbon

Miscellaneous » Unclassified

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BYR

Bikram Yoga on Republic

Miscellaneous » Unclassified

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BYR

Búsqueda Y Rescate

Governmental » Politics

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What does BYR mean?

byr
The abbreviation Byr means "billion years". A closely related abbreviation is bya "billion years ago". Byr was formerly used in English-language geology and astronomy as a unit of one billion years. Today, the term gigaannum is also used, but Gy or Gyr are still sometimes used in English-language works. Astronomers use Gyr or Gy as an abbreviation for gigayear. Specifically, one Gyr is equal to 10⁹ years. Because a billion means 1000 million in some countries but can mean a million million in others its use is deprecated in favour of giga- which unambiguously means 10⁹ and annum which for precision may be qualified by, etc.

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