giga-

a combining form meaning “billion,” used in the formation of compound words: gigabyte.

Origin of giga-

From the Greek word gígāsgiant

Words Nearby giga-

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use giga- in a sentence

Each number received minute attention, the Giga being played by Ethelbert Nevin.
Piano Mastery | Harriette Brower
The name comes from Giga (Geige), a sort of fiddle in use during the 12th and 13th centuries.
Shakespeare and Music | Edward W. Naylor

British Dictionary definitions for giga-

giga-

/ (ˈɡɪɡə, ˈɡaɪɡə) /

combining form

denoting 10 9: gigavolt Symbol: G
(in computer technology) denoting 2 30: gigabyte

Origin of giga-

from Greek gigas giant

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for giga-

giga-

A prefix that means:
One billion (109), as in gigahertz, one billion hertz.

230 (that is, 1,073,741,824), which is the power of 2 closest to a billion, as in gigabyte.

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