Definition of gigabyte in English:

gigabyte

(also Gb)

noun

Computing
  • A unit of information equal to one billion (10⁹) or, strictly, 2³⁰ bytes.

    gig
    • ‘Hard disk capacity is measured in gigabytes - a gigabyte being roughly 1,000 megabytes.’
    • ‘The resulting data warehouse filled 250 gigabytes of storage, and grows daily.’
    • ‘That can add up to hundreds or thousands of additional gigabytes of disk storage.’
    • ‘I am sure there must be millions like me who are mystified by bytes, megabytes, gigabytes or whatever they are called.’
    • ‘We used to measure data in terms of kilobytes and megabytes; now gigabytes and terabytes are the terms commonly discussed.’

Pronunciation:

gigabyte

/ˈɡiɡəˌbīt/