GB

G2B3

A form of gigabyte — One billion (10⁹, or 1,000,000,000) bytes or 1,000 megabytes.

Very commonScrabble 5

Meanings

GB1

nounGB (plural GBs)

plural GBs

  1. abbreviationinitialismInitialism of gigabyte.

    MB equals 10⁶ bytes and GB equals 10⁹ bytes

    1989, IBM 3390 Direct Access Storage Reference Summary, IBM, archived from the original on 16 Mar 2024, page 7
    3 more examples

    We’ve found the T7 Touch SSD to be fast, secure and quite portable. But the inclusion of a fingerprint sensor for security onboard increased the price: $129.99 for 500GBs, $229.99 for 1TB and $399.99 for 2TB.

    2020 May 19, Jacob Krol, “Samsung’s T7 SSD is a fast external drive at a cheaper price”, in CNN, archived from the original on 30 Dec 2025

    […] an Amazon S3 bucket can be used to store hundreds of GBs of data to start with […]

    2023, Gareth Eagar, Data Engineering with AWS, page 517

    For those who aren’t aware, a Nitro Basic subscription costs $3 a month. Nitro users, who pay $10 a month, get to stream videos in 4K and use emojis in channels. In comparison, messaging platforms like WhatsApp and Telegram offer a 2 GB file limit.

    2024 September 4, Anurag Singh, “Discord lowers free upload limit to 10MB: “Storage management is expensive””, in Dexerto, archived from the original on 08 Mar 2025
  2. abbreviationinformalcomputingAbbreviation of gibibyte.

    .

    Synonyms: GiB

  3. abbreviationinitialismanatomyInitialism of gallbladder.
  4. abbreviationinformalinitialismmedicineInitialism of goofball (“a barbiturate”).

    Goofballs usually produce a quiet drowsiness, but also at times a tense aggressiveness that can be frighteningly unpredictable. Irene's behavior when she is high on GBs, which is most of the time, has created such havoc in the neighborhood restaurants that they no longer let her in.

    1965 February 26, James Mills, “The World of Needle Park”, in Time, volume 58, number 8, page 82
  5. abbreviationinitialismchemistryInitialism of grain boundary.
  6. abbreviationinitialismastronomyInitialism of green bean galaxy.
proper noun
  1. abbreviationinitialismInitialism of Great Britain.
  2. abbreviationinitialismInitialism of Gilgit-Baltistan.
  3. abbreviationAbbreviation of Green Bay in Wisconsin, USA.
  4. abbreviationinitialismInitialism of Game Boy.
  5. abbreviationinitialismchemistryInitialism of German agent B (US designation for the nerve gas sarin).
  6. abbreviationinitialismInitialism of Guantanamo Bay.
  7. abbreviationinitialismhuman sciencesInitialism of Government and Binding.
phrase
  1. InternetabbreviationinitialismInitialism of God bless.

Gb2

symbol
  1. abbreviationcomputingAbbreviation of Gbit.
  2. abbreviationbiologyAbbreviation of gigabase.

Synonyms & antonyms

More synonyms by meaning

nouna highly toxic chemical nerve agent that inhibits the activity of cholinesterase

Similar
Broader
organophosphate nerve agentG-series agentG-series nerve agentG agent

nouna unit of information equal to 1000 megabytes or 10^9 (1,000,000,000) bytes

Similar
Broader
computer memory unit

nouna unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes

Broader
computer memory unit

nouna unit of magnetomotive force equal to 0.7958 ampere-turns

Similar
Broader
magnetomotive force unit

nouna unit of information equal to 1000 megabits or 10^9 (1,000,000,000) bits

Broader
computer memory unit

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

French Go
  • Gogigabyte
Cite this entry
APA

GB. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/GB

MLA

“GB.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/GB. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “GB,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/GB.

Source: GB on Wiktionary, CC BY-SA 4.0.