We've got 21 definitions »

What does BYA stand for? 

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

Filter by: Sort by:PopularityAlphabeticallyCategory

Term

Definition

Rating

BYA

Billions Of Years Ago

Miscellaneous » Unit Measures

Rate it:
BYA

Boundary, Alaska USA

Regional » Airport Codes

Rate it:
BYA

Billion Years Ago

Miscellaneous » Unclassified

Rate it:
BYA

Barrington Youth Association

Community » Youth

Rate it:
BYA

Because You Asked

Miscellaneous » Unclassified

Rate it:
BYA

Beat Your A**

Internet » Chat

Rate it:
BYA

Birmingham Youth Assistance

Community » Youth

Rate it:
BYA

Boost Your Average

Miscellaneous » Unclassified

Rate it:
BYA

Burleson Youth Association

Community » Youth

Rate it:
BYA

Berkeley Youth Alternatives

Community » Youth

Rate it:
BYA

Brigham Young Academy

Academic & Science

Rate it:
BYA

Baltimore Youth Arts

Community » Youth

Rate it:
BYA

Barr Young Attorneys

Governmental » Law & Legal

Rate it:
BYA

Barter Youth Academy

Community » Youth -- and more...

Rate it:
BYA

Bartow Youth Academy

Community » Youth -- and more...

Rate it:
BYA

Bayview Youth Advocates

Community » Youth

Rate it:
BYA

Beat Your Ass

Miscellaneous » Unclassified

Rate it:
BYA

Before You All

Miscellaneous » Funnies

Rate it:
BYA

Biola Youth Academics

Community » Youth

Rate it:
BYA

Bloomfield Youth Assistance

Community » Youth

Rate it:
BYA

Brownsville Youth Association

Community » Youth -- and more...

Rate it:

What does BYA mean?

Bya
bya or b.y.a. is an abbreviation for "billion years ago". It is commonly used as a unit of time to denote length of time before the present in 109 years. This initialism is often used in the sciences of astronomy, geology, and paleontology. The "billion" in bya is the 109 "billion" of the short scale of the U.S., not the long-scale 1012 "billion" of some European usage. Billion by this convention (109) is often called a "thousand million" in the UK and a "milliard" in some other countries. For this reason, there is potential for some confusion, and some scientists prefer the unit Gya, while others prefer Ga (Giga-annum), however bya remains in more widespread use. In 1974, the UK switched from the long scale to the short scale.Related units are mya ("million years ago"), and byr ("billion years"). These are traditionally written in lowercase. Ga or Gya has a capitalized first letter instead.

see more »

Know what is BYA? Got another good explanation for BYA? Don't keep it to yourself!

Still can't find the acronym definition you were looking for? Use our Power Search technology to look for more unique definitions from across the web!

Citation

Use the citation options below to add these abbreviations to your bibliography.

Style:MLAChicagoAPA

"BYA." Abbreviations.com. STANDS4 LLC, 2020. Web. 7 Jul 2020. <https://www.abbreviations.com/BYA>.

Free, no signup required:

Add to Chrome

Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!

Free, no signup required:

Add to Firefox

Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!

Embed

Share an image of BYA

»

Hearing impaired tip:

Sign language

How do you say BYA in ASL sign language fingerspelling?
bya